{"id":196,"date":"2024-10-13T02:20:53","date_gmt":"2024-10-13T00:20:53","guid":{"rendered":"https:\/\/o-seznam.cz\/napoveda\/ucet\/?page_id=196"},"modified":"2025-03-12T09:02:15","modified_gmt":"2025-03-12T08:02:15","slug":"kradez-uctu","status":"publish","type":"page","link":"https:\/\/o-seznam.cz\/napoveda\/ucet\/zasady-bezpecnosti\/kradez-uctu\/","title":{"rendered":"Kr\u00e1de\u017e \u00fa\u010dtu"},"content":{"rendered":"\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\"><nav class=\"menu-anchors\">\n<ul>\n\t<li><a href=\"#napadeni-uctu\">Jak poznat, \u017ee n\u011bkdo napadl m\u016fj \u00fa\u010det?<\/a><\/li>\n<li><a href=\"#znaky-napadeni\">Co d\u011blat, kdy\u017e \u00fa\u010det vykazuje znaky napaden\u00ed?<\/a><\/li>\n<li><a href=\"#k-cemu-se-pouzivaji\">K \u010demu se napaden\u00e9 \u00fa\u010dty pou\u017e\u00edvaj\u00ed?<\/a><\/li>\n<li><a href=\"#jak-se-dostane\">Jak se \u00fato\u010dn\u00edk dostane k heslu?<\/a><\/li>\n<li><a href=\"#nejlepsi-prevence\">Jak\u00e1 je nejlep\u0161\u00ed prevence?<\/a><\/li>\n<li><a href=\"#co-delat\">Co d\u011blat, kdy\u017e je \u00fa\u010det zablokov\u00e1n?<\/a><\/li>\n<li><a href=\"#jak-postupovat\">Jak postupovat, pokud nem\u00e1m k \u00fa\u010dtu p\u0159\u00edstup?<\/a><\/li>\n<\/ul>\n\n<\/nav>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>Kr\u00e1de\u017e \u00fa\u010dtu je obt\u00ed\u017en\u00e1 a mnohdy nebezpe\u010dn\u00e1 situace. Kdy\u017e si uv\u011bdom\u00edme, jak\u00e9 informace mnoho z n\u00e1s uchov\u00e1v\u00e1 ve sv\u00e9 e-mailov\u00e9 schr\u00e1nce, u\u017e samotn\u00fd fakt, \u017ee tyto informace mohl n\u011bkdo vid\u011bt, je nep\u0159\u00edjemn\u00fd.<\/p>\n\n\n\n<p>Pokud se domn\u00edv\u00e1te, \u017ee jste v bezpe\u010d\u00ed, proto va\u0161e data p\u0159eci \u201enemohou nikoho zaj\u00edmat\u201c, v\u011bzte, \u017ee \u00fato\u010dn\u00edkovi je jedno, jak\u00e1 data z\u00edsk\u00e1 nebo \u010d\u00ed \u00fa\u010det zneu\u017eije k rozesl\u00e1n\u00ed spamu. Jak\u00fdkoli \u00fa\u010det p\u0159ijde vhod, proto se vyplat\u00ed chr\u00e1nit v\u0161echny \u00fa\u010dty stejn\u011b. Hlavn\u00ed zbran\u00ed v boji proti t\u011bmto \u201evzd\u00e1len\u00fdm\u201c nep\u0159\u00e1tel\u016fm, kte\u0159\u00ed na internetu \u010d\u00edhaj\u00ed, je p\u0159edev\u0161\u00edm informovanost.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\" id=\"napadeni-uctu\">Jak poznat, \u017ee n\u011bkdo napadl m\u016fj \u00fa\u010det?<\/h2>\n\n\n\n<p>V prvn\u00ed \u0159ad\u011b je dobr\u00e9 zn\u00e1t, jak\u00e9 \u201ep\u0159\u00edznaky\u201c nese napaden\u00ed \u00fa\u010dtu. \u010casto pozn\u00e1te, \u017ee do \u00fa\u010dtu n\u011bkdo p\u0159istoupil a pokusil se jej zneu\u017e\u00edt. V men\u0161\u00edm mno\u017estv\u00ed p\u0159\u00edpad\u016f je \u00fatok natolik sofistikovan\u00fd, \u017ee se \u00fato\u010dn\u00edk pokou\u0161\u00ed zahladit stopy a poznat, \u017ee na \u00fa\u010dtu prob\u011bhlo n\u011bco nestandardn\u00edho, je t\u011b\u017e\u0161\u00ed\u2026<\/p>\n\n\n\n<div style=\"--content-limiter--height:7rem\" class=\"is-collapsed wp-block-seznam-content-limiter\">\n\t<div class=\"inner-blocks is-layout-flow\">\t\n\t\t\n\n<h3 class=\"wp-block-heading\">Nezn\u00e1m\u00e9 odeslan\u00e9 zpr\u00e1vy a kontakty<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Prvn\u00edm n\u00e1znakem je, \u017ee se ve schr\u00e1nce objev\u00ed n\u011bco, co jste v n\u00ed nevytvo\u0159ili. V Odeslan\u00e9 se objev\u00ed zpr\u00e1vy, kter\u00e9 jste neodeslali, nej\u010dast\u011bji je to (zahrani\u010dn\u00ed) spam. Jeliko\u017e v\u011bt\u0161ina schr\u00e1nek je napadena za \u00fa\u010delem zneu\u017eit\u00ed pro rozes\u00edl\u00e1n\u00ed spamu, je toto v\u016fbec nej\u010dast\u011bj\u0161\u00ed p\u0159\u00edznak<\/li>\n\n\n\n<li>N\u011bkdy se stane, \u017ee \u00fato\u010dn\u00edk zahlad\u00ed stopy a po\u0161tu z Odeslan\u00e9 sma\u017ee. Zam\u011b\u0159te se tedy i na dal\u0161\u00ed obsah a prozkoumejte cokoli podez\u0159el\u00e9ho \u2013 nap\u0159. v na\u0161ept\u00e1va\u010di adres p\u0159i psan\u00ed nov\u00e9 zpr\u00e1vy se objev\u00ed adresy, kter\u00e9 nezn\u00e1te; do Doru\u010den\u00e9 po\u0161ty v\u00e1m chod\u00ed odpov\u011bdi na zpr\u00e1vy, kter\u00e9 jste nepsali atd.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Do schr\u00e1nky nechod\u00ed po\u0161ta nebo po\u0161ta zmizela<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Existuje ur\u010dit\u00e1 skupina \u00fatok\u016f, jejich\u017e c\u00edlem je dostat se k va\u0161\u00ed po\u0161t\u011b. \u00dato\u010dn\u00edk tak ve schr\u00e1nce m\u016f\u017ee nastavit pravidla, kter\u00e1 p\u0159epos\u00edlaj\u00ed do\u0161l\u00e9 zpr\u00e1vy na jeho jinou e-mailovou adresu (a pak p\u0159eposlanou zpr\u00e1vu i sma\u017eou).<\/li>\n\n\n\n<li>V jin\u00e9m typu tzv. sabot\u00e1\u017en\u00edch \u00fatok\u016f \u00fato\u010dn\u00edk m\u00e1 za c\u00edl \u201epouze\u201c \u0161kodit, proto v\u00e1m m\u016f\u017ee ze schr\u00e1nky smazat po\u0161tu \u010di nastavit pravidlo pro maz\u00e1n\u00ed nov\u00fdch do\u0161l\u00fdch zpr\u00e1v \u2013 takov\u00e9 pravidlo je t\u0159eba v Nastaven\u00ed schr\u00e1nky odstranit, jinak by v\u00e1m nep\u0159ich\u00e1zely nov\u00e9 zpr\u00e1vy.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">P\u0159ich\u00e1z\u00ed velk\u00e9 mno\u017estv\u00ed zpr\u00e1v o nedoru\u010den\u00ed<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zpr\u00e1va o nedoru\u010den\u00ed, tzv. Mailer Daemon (nebo Mail Delivery System) p\u0159ijde odes\u00edlateli, jeho\u017e e-mail se nepoda\u0159ilo p\u0159\u00edjemci doru\u010dit. Pokud se va\u0161e schr\u00e1nka zahlcuje mno\u017estv\u00edm takov\u00fdch zpr\u00e1v, znamen\u00e1 to, \u017ee se n\u011bkde ve sv\u011bt\u011b nepoda\u0159ilo p\u0159\u00edjemc\u016fm doru\u010dit zpr\u00e1vy, v nich\u017e jste byli uvedeni jako odes\u00edlatel. Server p\u0159\u00edjemce pak Mailer Daemon za\u0161le v\u00e1m.<\/li>\n\n\n\n<li>Tyto zpr\u00e1vy mohly b\u00fdt odesl\u00e1ny z va\u0161\u00ed schr\u00e1nky, ale tak\u00e9 nemusely. Mohlo se jednat o zpr\u00e1vy s podvr\u017eenou hlavi\u010dkou, odeslan\u00e9 z \u00fapln\u011b jin\u00e9ho m\u00edsta, do kter\u00fdch byla va\u0161e adresa pouze fiktivn\u011b dopln\u011bna jako odes\u00edlatel. I tak doporu\u010dujeme aktualizovat zabezpe\u010den\u00ed \u00fa\u010dtu, proto\u017ee k \u010demu p\u0159esn\u011b do\u0161lo, nen\u00ed jednoduch\u00e9 poznat (v\u011bt\u0161inou je to mo\u017en\u00e9 dle odchoz\u00ed IP adresy v hlavi\u010dce odeslan\u00e9 zpr\u00e1vy, kter\u00e1 je \u010dasto sou\u010d\u00e1st\u00ed Mailer Daemonu jako p\u0159\u00edloha; v\u00edce o \u010dten\u00ed hlavi\u010dky se dozv\u00edte v <a href=\"https:\/\/o-seznam.cz\/napoveda\/email\/mohlo-by-se-hodit\/hlavicka-e-mailu\/\">tomto \u010dl\u00e1nku<\/a>).<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"240\" src=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-content\/uploads\/sites\/10\/2024\/10\/mail-delivery-failure.png\" alt=\"\" class=\"wp-image-789\" srcset=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-content\/uploads\/sites\/10\/2024\/10\/mail-delivery-failure.png 650w, https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-content\/uploads\/sites\/10\/2024\/10\/mail-delivery-failure-320x118.png 320w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00e1\u0161 \u00fa\u010det je zablokov\u00e1n nebo je vynucena zm\u011bna hesla<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>P\u0159ihl\u00e1sili jste se do \u00fa\u010dtu, ale nam\u00edsto sv\u00e9 schr\u00e1nky jste se dozv\u011bd\u011bli, \u017ee je \u00fa\u010det blokov\u00e1n. Nebo se zobrazila str\u00e1nka, kter\u00e1 vy\u017eaduje, abyste si zm\u011bnili heslo. To znamen\u00e1, \u017ee jsme u va\u0161eho \u00fa\u010dtu detekovali podez\u0159el\u00e9 chov\u00e1n\u00ed a automatick\u00fd syst\u00e9m se jej rozhodl blokovat.<\/li>\n\n\n\n<li>Sledujeme des\u00edtky parametr\u016f, kter\u00e9 pom\u00e1haj\u00ed automaticky vyhodnocovat e-mailov\u00fd provoz a detekovat spam. Pokud jste v dob\u011b, kdy k blokaci do\u0161lo, sami v\u011bdom\u011b rozes\u00edlali hromadn\u00e9 zpr\u00e1vy, i to mohlo zp\u016fsobit blokaci. Pakli\u017ee si nejste ni\u010deho v\u011bdomi, prove\u010fte zm\u011bnu hesla dle pokyn\u016f v \u010dl\u00e1nku Vynucen\u00e1 zm\u011bna hesla. Dal\u0161\u00ed informace, jak postupovat, si m\u016f\u017eete p\u0159e\u010d\u00edst v \u010dl\u00e1nku <a href=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/zabezpeceni-uctu\/vynucena-zmena-hesla\/\">Blokace Seznam \u00fa\u010dtu<\/a>.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"261\" src=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-content\/uploads\/sites\/10\/2024\/10\/prihlaseni-vynucena-zmena-hesla.png\" alt=\"\" class=\"wp-image-790\" srcset=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-content\/uploads\/sites\/10\/2024\/10\/prihlaseni-vynucena-zmena-hesla.png 650w, https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-content\/uploads\/sites\/10\/2024\/10\/prihlaseni-vynucena-zmena-hesla-320x128.png 320w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Ve schr\u00e1nce je upozorn\u011bn\u00ed na p\u0159ihl\u00e1\u0161en\u00ed ze zahrani\u010d\u00ed<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Drtiv\u00e1 v\u011bt\u0161ina \u00fatok\u016f na \u00fa\u010dty a rozeslan\u00e9 spamu poch\u00e1z\u00ed ze zahrani\u010d\u00ed, konkr\u00e9tn\u011b ze zem\u00ed t\u0159et\u00edho sv\u011bta. Proto i my vyu\u017e\u00edv\u00e1me detekci zem\u011b p\u016fvod\u016f a sejde-li se na \u00fa\u010dtu n\u011bkolik podez\u0159el\u00fdch aktivit ze zahrani\u010d\u00ed, ve schr\u00e1nce v\u00e1s na to upozorn\u00edme formou notifika\u010dn\u00edho prou\u017eku v horn\u00ed \u010d\u00e1sti schr\u00e1nky. V n\u011bm vyjmenujeme zem\u011b, ze kter\u00fdch jsme aktivity zaznamenali. M\u016f\u017eete se tak sami rozhodnout a vyhodnotit, zda \u0161lo o va\u0161e nebo ciz\u00ed p\u0159ihl\u00e1\u0161en\u00ed.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"29\" src=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-content\/uploads\/sites\/10\/2024\/10\/prihlaseni-cizi-zeme.png\" alt=\"\" class=\"wp-image-791\" srcset=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-content\/uploads\/sites\/10\/2024\/10\/prihlaseni-cizi-zeme.png 650w, https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-content\/uploads\/sites\/10\/2024\/10\/prihlaseni-cizi-zeme-320x14.png 320w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/figure>\n\n\t<\/div>\n\t\t\t<button class=\"wp-block-seznam-content-limiter__button circle-button circle-button--up\"><\/button>\n\t<\/div><\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\" id=\"znaky-napadeni\">Co d\u011blat, kdy\u017e \u00fa\u010det vykazuje znaky napaden\u00ed?<\/h2>\n\n\n\n<p>Pokud jste pr\u00e1v\u011b zjistili, \u017ee je s va\u0161\u00edm \u00fa\u010dtem n\u011bco v nepo\u0159\u00e1dku, nap\u0159\u00edklad proto\u017ee jsme se setkali s n\u011bkter\u00fdm z p\u0159\u00edznak\u016f z prvn\u00edho odstavce, je d\u016fle\u017eit\u00e9 konat rychle. Nikdy nev\u00edte, zda \u00fato\u010dn\u00edk st\u00e1le nem\u00e1 do \u00fa\u010dtu p\u0159\u00edstup a nezm\u011bn\u00ed v\u00e1m heslo. Pakli\u017ee se tak ji\u017e stalo a p\u0159\u00edstup do \u00fa\u010dtu moment\u00e1ln\u011b nem\u00e1te, pokra\u010dujte do \u010d\u00e1sti o obnov\u011b p\u0159\u00edstupu\u2026<\/p>\n\n\n\n<div style=\"--content-limiter--height:7rem\" class=\"is-collapsed wp-block-seznam-content-limiter\">\n\t<div class=\"inner-blocks is-layout-flow\">\t\n\t\t\n\n<h3 class=\"wp-block-heading\">1. Zkontrolujte si ov\u011b\u0159en\u00e9 kontakty<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00dato\u010dn\u00edk se mohl p\u0159ipravit na situaci, \u017ee p\u0159\u00edstup do \u00fa\u010dtu obnov\u00edte a zm\u011bn\u00edte heslo zp\u011bt na vlastn\u00ed. Mohl v nastaven\u00ed \u00da\u010det &gt; Zabezpe\u010den\u00ed \u00fa\u010dtu nastra\u017eit sv\u00e9 z\u00e1chrann\u00e9 kontakty, kter\u00fdmi by mohl zkusit heslo znovu zm\u011bnit. P\u0159ekontrolujte si \u00fadaje, kter\u00e9 zde m\u00e1te ulo\u017een\u00e9, v p\u0159\u00edpad\u011b pot\u0159eby je zm\u011b\u0148te<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. Okam\u017eit\u011b zm\u011b\u0148te heslo<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nastavte zcela nov\u00e9 heslo, kter\u00e9 u \u00fa\u010dtu nikdy nebylo nastaveno a kter\u00e9 nevyu\u017e\u00edv\u00e1te na \u017e\u00e1dn\u00e9 jin\u00e9 slu\u017eb\u011b na internetu. Vyberte p\u0159edev\u0161\u00edm bezpe\u010dn\u00e9 a unik\u00e1tn\u00ed heslo, kter\u00e9 se nepodob\u00e1 e-mailov\u00e9 adrese. P\u0159e\u010dt\u011bte si dal\u0161\u00ed doporu\u010den\u00ed, jak zvolit bezpe\u010dn\u00e9 heslo<\/li>\n\n\n\n<li>Pou\u017e\u00edv\u00e1te-li u sv\u00e9ho \u00fa\u010dtu dvouf\u00e1zov\u00e9 ov\u011b\u0159en\u00ed, je d\u016fle\u017eit\u00e9 zm\u011bnit i heslo pro po\u0161tovn\u00ed protokoly a xDAV. Pokud bylo zneu\u017eito pr\u00e1v\u011b ono, zm\u011bna p\u0159ihla\u0161ovac\u00edho hesla nepom\u016f\u017ee<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. Zru\u0161te aktivn\u00ed p\u0159ihl\u00e1\u0161en\u00ed v \u00da\u010dtu<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tato funkce dostupn\u00e1 ve va\u0161em \u00da\u010dtu &gt; Aktivn\u00ed p\u0159ihl\u00e1\u0161en\u00ed umo\u017e\u0148uje jedn\u00edm klikem odhl\u00e1sit \u00fa\u010det na v\u0161ech za\u0159\u00edzen\u00ed, kde je v tu chv\u00edli p\u0159ihl\u00e1\u0161en. Zm\u011bna hesla toti\u017e nem\u00e1 okam\u017eit\u00fd \u00fa\u010dinek, pokud je \u00fa\u010det v tu chv\u00edli ji\u017e p\u0159ihl\u00e1\u0161en a pou\u017e\u00edv\u00e1n. Ze za\u0159\u00edzen\u00ed odhl\u00e1s\u00edte sebe, ale z\u00e1rove\u0148 i p\u0159\u00edpadn\u00e9ho \u00fato\u010dn\u00edka. Cel\u00fd postup najdete v \u010dl\u00e1nku Zru\u0161en\u00ed aktivn\u00edch p\u0159ihl\u00e1\u0161en\u00ed<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. Nastavte dvouf\u00e1zov\u00e9 ov\u011b\u0159en\u00ed<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Jakmile provedete odhl\u00e1\u0161en\u00ed aktivn\u00edch p\u0159ihl\u00e1\u0161en\u00ed, dal\u0161\u00edm krokem m\u016f\u017ee b\u00fdt zapnut\u00ed dvouf\u00e1zov\u00e9ho ov\u011b\u0159en\u00ed. Tato funkce v\u00e1s na tzv. ov\u011b\u0159ovac\u00edm za\u0159\u00edzen\u00ed upozorn\u00ed na ka\u017ed\u00fd pokus o p\u0159ihl\u00e1\u0161en\u00ed. Pokud by se i p\u0159es kroky v\u00fd\u0161e n\u011bkdo znovu zkusil p\u0159ihl\u00e1sit, tak jeho pokus m\u016f\u017eete odm\u00edtnout a on se do \u00fa\u010dtu nedostane<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"151\" src=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-content\/uploads\/sites\/10\/2024\/10\/prihlaseni-dialog-2fa-2.png\" alt=\"\" class=\"wp-image-795\" srcset=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-content\/uploads\/sites\/10\/2024\/10\/prihlaseni-dialog-2fa-2.png 650w, https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-content\/uploads\/sites\/10\/2024\/10\/prihlaseni-dialog-2fa-2-320x74.png 320w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/figure>\n\n\t<\/div>\n\t\t\t<button class=\"wp-block-seznam-content-limiter__button circle-button circle-button--up\"><\/button>\n\t<\/div><\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\" id=\"k-cemu-se-pouzivaji\">K \u010demu se napaden\u00e9 \u00fa\u010dty pou\u017e\u00edvaj\u00ed?<\/h2>\n\n\n\n<p>Abychom nejl\u00e9pe ilustrovali, jak r\u016fznorod\u00e9 a sofistikovan\u00e9 \u00fatoky dok\u00e1\u017eou b\u00fdt, rozhodli jsme se na z\u00e1klad\u011b zku\u0161enost\u00ed a identifikovan\u00fdch \u00fatok\u016f sepsat \u010dast\u00e9 i m\u00e9n\u011b \u010dast\u00e9 motivy, kter\u00e9 tyto \u00fatoky m\u011bly\u2026<\/p>\n\n\n\n<div style=\"--content-limiter--height:7rem\" class=\"is-collapsed wp-block-seznam-content-limiter\">\n\t<div class=\"inner-blocks is-layout-flow\">\t\n\t\t\n\n<h3 class=\"wp-block-heading\">Rozesl\u00e1n\u00ed spamu ze schr\u00e1nky<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00dato\u010dn\u00edk shroma\u017e\u010fuje datab\u00e1zi j\u00edm ovl\u00e1dan\u00fdch \u00fa\u010dt\u016f, nad kter\u00fdmi spust\u00ed tzv. Spambota, co\u017e je automat, kter\u00fd roze\u0161le spam do cel\u00e9ho sv\u011bta. Vznik\u00e1 tak obrovsk\u00e1 s\u00ed\u0165 napaden\u00fdch \u00fa\u010dt\u016f pro distribuci nevy\u017e\u00e1dan\u00e9 po\u0161ty, kterou je t\u011b\u017ek\u00e9 odfiltrovat, proto\u017ee vyu\u017e\u00edv\u00e1 stovky, tis\u00edce i miliony odchoz\u00edch adres<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Kr\u00e1de\u017e \u00fa\u010dt\u016f na ostatn\u00edch slu\u017eb\u00e1ch<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Jakmile \u00fato\u010dn\u00edk zn\u00e1 kombinaci va\u0161eho e-mailu a hesla, m\u016f\u017ee jednodu\u0161e zjistit, zda jste registrovan\u00ed na jin\u00fdch online slu\u017eb\u00e1ch a t\u00e9\u017e na nich zm\u011bnit hesla. Tak je \u00fato\u010dn\u00edkovi otev\u0159ena cesta ke v\u0161em va\u0161im dal\u0161\u00edm online \u00fa\u010dt\u016fm \u2013 c\u00edlem b\u00fdv\u00e1 Facebook, Instagram, hern\u00ed \u00fa\u010dty (Steam, Epic Games, konkr\u00e9tn\u00ed online hry) a dal\u0161\u00ed. Na t\u011bch \u00fato\u010dn\u00edk m\u016f\u017ee nap\u00e1chat dal\u0161\u00ed \u0161kodu nebo je ukr\u00e1st a zpen\u011b\u017eit<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Kr\u00e1de\u017e finan\u010dn\u00edch \u00fadaj\u016f<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00dato\u010dn\u00edk m\u016f\u017ee v e-mailov\u00e9 schr\u00e1nce zkusit naj\u00edt informace o va\u0161\u00ed kreditn\u00ed kart\u011b nebo p\u0159istoupit k internetov\u00e9mu bankovnictv\u00ed. Na stejn\u00e9m principu, na jak\u00e9m se m\u016f\u017ee dostat k ostatn\u00edm online \u00fa\u010dt\u016fm, si m\u016f\u017ee vy\u017e\u00e1dat heslo pro PayPal \u010di Revolut a pokusit se ods\u00e1t z \u00fa\u010dt\u016f finan\u010dn\u00ed prost\u0159edky<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Sabot\u00e1\u017ee, \u0161kozen\u00ed<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nem\u00e1lo \u00fato\u010dn\u00edk\u016f se touto aktivitou jednodu\u0161e bav\u00ed<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Kr\u00e1de\u017e identity<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Velmi z\u00e1va\u017en\u00e1 situace nastane, pokud \u00fato\u010dn\u00edk va\u0161e osobn\u00ed \u00fadaje pou\u017eije ke kon\u00e1n\u00ed krimin\u00e1ln\u00ed \u010dinnosti \u2013 online i v re\u00e1ln\u00e9m sv\u011bt\u011b; zejm\u00e9na, m\u00e1te-li v e-mailov\u00e9 schr\u00e1nce sv\u00e9 kontakty, adresy nebo dokonce oskenovan\u00e9 doklady<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Phishing<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00dato\u010dn\u00edk z ukraden\u00e9 schr\u00e1nky roze\u0161le phishingov\u00e9 zpr\u00e1vy, kter\u00e9 se vyd\u00e1vaj\u00ed za jin\u00e9 slu\u017eby (banky, PayPal, eBay, Airbnb apod.) \u010di jin\u00e9 osoby<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Shroma\u017e\u010fov\u00e1n\u00ed a prodej dat<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u00dato\u010dn\u00edk m\u016f\u017ee kr\u00e1st \u00fa\u010dty nikoli k tomu, aby je s\u00e1m vyu\u017eil, ale pro vytvo\u0159en\u00ed ucelen\u00e9 datab\u00e1ze e-mail\u016f a hesel, kterou pak m\u016f\u017ee prodat jin\u00fdm z\u00e1jemc\u016fm. P\u0159\u00edpadn\u011b m\u016f\u017ee prod\u00e1vat nabyt\u00e9 informace nalezen\u00e9 uvnit\u0159 e-mailov\u00fdch schr\u00e1nek. Na \u010dern\u00e9m trhu je mo\u017en\u00e9 zpen\u011b\u017eit v\u0161echno mo\u017en\u00e9<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Vystaven\u00ed podvodn\u00fdch inzer\u00e1t\u016f<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Organizovan\u00e9 skupiny vyu\u017e\u00edvaj\u00ed ukraden\u00e9 \u00fa\u010dty k tomu, aby na online inzertn\u00edch slu\u017eb\u00e1ch vystavili inzer\u00e1ty na podvodn\u00fd prodej, pak se z\u00e1jemci komunikuj\u00ed, do\u017eaduj\u00ed se platby p\u0159edem a zbo\u017e\u00ed nedodaj\u00ed. Zn\u00e1m\u00e9 jsou nap\u0159\u00edklad podvody s prodejem voz\u016f ze zahrani\u010d\u00ed, realit a n\u00e1jm\u016f apod.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Osobn\u00ed z\u00e1jem, vyd\u00edr\u00e1n\u00ed<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nemal\u00e1 \u010d\u00e1st \u00fatok\u016f je motivov\u00e1na osobn\u00ed mstou; je t\u0159eba zm\u00ednit, \u017ee a\u010d je jednoduch\u00e9 se domn\u00edvat, \u017ee nikdo v na\u0161em okol\u00ed nem\u00e1 d\u016fvod n\u00e1s takto po\u0161kodit, zku\u0161enosti bohu\u017eel hovo\u0159\u00ed jinak \u2013 b\u00fdval\u00ed i sou\u010dasn\u00ed partne\u0159i, zam\u011bstnanci a zam\u011bstnavatel\u00e9, spolu\u017e\u00e1ci, obchodn\u00ed partne\u0159i; kdokoli, s n\u00edm\u017e m\u00e1te neshody, m\u00e1 motiv se \u201evloupat\u201c do va\u0161\u00ed e-mailov\u00e9 schr\u00e1nky. Lid\u00e9, kte\u0159\u00ed v\u00e1s znaj\u00ed, nav\u00edc maj\u00ed nejlep\u0161\u00ed n\u00e1stroje \u2013 mohou zkusit uhodnout va\u0161e heslo na z\u00e1klad\u011b re\u00e1li\u00ed, znaj\u00ed va\u0161e n\u00e1vyky, mohou m\u00edt p\u0159\u00edstup k va\u0161im za\u0159\u00edzen\u00edm<\/li>\n<\/ul>\n\n\t<\/div>\n\t\t\t<button class=\"wp-block-seznam-content-limiter__button circle-button circle-button--up\"><\/button>\n\t<\/div><\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\" id=\"jak-se-dostane\">Jak se \u00fato\u010dn\u00edk dostane k heslu?<\/h2>\n\n\n\n<p>Existuje cel\u00e1 \u0159ada zp\u016fsob\u016f, jak \u00fato\u010dn\u00edci mohou p\u0159ij\u00edt k va\u0161emu heslu. Je dobr\u00e9 m\u00edt o nich alespo\u0148 z\u00e1kladn\u00ed pov\u011bdom\u00ed. Zde je t\u0159eba \u0159\u00edci, \u017ee podobn\u011b jako v \u017eivot\u011b \u2013 nejv\u00edce zp\u016fsob\u016f vyu\u017e\u00edv\u00e1 t\u011bch v\u016fbec nejtrivi\u00e1ln\u011bj\u0161\u00edch n\u00e1stroj\u016f\u2026<\/p>\n\n\n\n<div style=\"--content-limiter--height:7rem\" class=\"is-collapsed wp-block-seznam-content-limiter\">\n\t<div class=\"inner-blocks is-layout-flow\">\t\n\t\t\n\n<h3 class=\"wp-block-heading\">U\u017eivatel heslo do sv\u00e9ho e-mailu pou\u017eil i v jin\u00e9 slu\u017eb\u011b, kter\u00e1 m\u011bla slab\u00e9 zabezpe\u010den\u00ed a heslo z n\u00ed uniklo<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Na z\u00e1klad\u011b anal\u00fdzy \u0159ady p\u0159\u00edpad\u016f ji\u017e dnes v\u00edme, \u017ee \u201e\u00fanik\u201c hesla nutn\u011b neznamen\u00e1 sofistikovan\u00fd hacking. \u00dato\u010dn\u00edci se zpravidla zam\u011b\u0159uj\u00ed na men\u0161\u00ed obchody, f\u00f3ra, seznamky a dal\u0161\u00ed slu\u017eby, kter\u00e9 nemaj\u00ed dostate\u010dn\u011b vyvinut\u00e9 zabezpe\u010den\u00ed pro ukl\u00e1d\u00e1n\u00ed hesel sv\u00fdch u\u017eivatel\u016f. Jakmile se dostanou k takov\u00e9 datab\u00e1zi u\u017eivatel\u016f, hledaj\u00ed v nich ty, kte\u0159\u00ed pou\u017e\u00edvali stejn\u00e9 heslo i pro svou e-mailovou schr\u00e1nku<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Phishingov\u00e9 zpr\u00e1vy<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Velkou oblibu mezi \u00fato\u010dn\u00edky m\u00e1 phishing. Jde o typ e-mailov\u00e9 zpr\u00e1vy, ve kter\u00e9 se \u00fato\u010dn\u00edk vyd\u00e1v\u00e1 za jinou spole\u010dnost\/osobu a sna\u017e\u00ed se v\u00e1s p\u0159im\u011bt k tomu, abyste na j\u00edm podvr\u017een\u00e9 webov\u00e9 str\u00e1nce zadali heslo. \u00dato\u010dn\u00edk po\u0161le zpr\u00e1vu, v n\u00ed\u017e se m\u016f\u017ee vyd\u00e1vat t\u0159eba i za Seznam.cz nebo jin\u00e9 spole\u010dnosti, p\u0159id\u00e1 odkaz na podvodnou p\u0159ihla\u0161ovac\u00ed str\u00e1nku, kter\u00e1 m\u016f\u017ee m\u00edt podobn\u00fd vzhled jako ta origin\u00e1ln\u00ed. Ve zpr\u00e1v\u011b je \u010dasto uvedena z\u00e1minka \u2013 nap\u0159\u00edklad, \u017ee pokud se nep\u0159ihl\u00e1s\u00edte, va\u0161e e-mailov\u00e1 schr\u00e1nka bude zru\u0161ena. P\u0159\u00edklad a dal\u0161\u00ed informace najdete v \u010dl\u00e1nku <a href=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/zasady-bezpecnosti\/bezpecne-chovani\/\" data-type=\"page\" data-id=\"192\">Bezpe\u010dn\u00e9 chov\u00e1n\u00ed na internetu<\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">U\u017eivatel sv\u00e9 heslo s\u00e1m sd\u011blil dal\u0161\u00ed osob\u011b, kter\u00e1 jej zm\u011bnila na jin\u00e9<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Plat\u00ed, \u017ee sv\u00e9 heslo bychom nem\u011bli sd\u011blovat nikomu. A u\u017e v\u016fbec ne osob\u011b, kterou sotva zn\u00e1me nebo jsme ji potkali pouze p\u0159es internet. Zde bychom mohli zm\u00ednit i velmi rizikov\u00fd prodej online \u00fa\u010dt\u016f. Nen\u00ed vz\u00e1cnost\u00ed, \u017ee pokud od n\u011bkoho odkoup\u00edte \u00fa\u010det nap\u0159. v online h\u0159e, zaplat\u00edte a prodejce v\u00e1m dokonce sd\u011bl\u00ed p\u0159ihla\u0161ovac\u00ed e-mail a heslo do hry, ponech\u00e1-li si p\u0159ihla\u0161ovac\u00ed \u00fadaje do souvisej\u00edc\u00ed e-mailov\u00e9 schr\u00e1nce, m\u016f\u017ee p\u0159es ni heslo k prodan\u00e9mu \u00fa\u010dtu obnovit. To sam\u00e9 plat\u00ed i pro prodej e-mailov\u00fdch schr\u00e1nek \u2013 takov\u00e1 \u010dinnost je v podm\u00ednk\u00e1ch zak\u00e1z\u00e1na, je nejlep\u0161\u00ed se j\u00ed vyh\u00fdbat. Hroz\u00ed riziko, \u017ee si prodejce ponech\u00e1 u \u00fa\u010dtu mo\u017enost obnovit k n\u011bmu heslo a t\u00edm si \u00fa\u010det m\u016f\u017ee \u201eukr\u00e1st\u201c nazp\u011bt<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">U\u017eivatel dal\u0161\u00ed osob\u011b sd\u011blil bezpe\u010dnost\u00ed ot\u00e1zky nebo PIN pro obnovu hesla<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pokud v\u00e1m na mobiln\u00ed telefon nebo sekund\u00e1rn\u00ed e-mail doraz\u00ed zpr\u00e1va s PIN k\u00f3dem pro obnovu hesla k va\u0161emu \u00fa\u010dtu, ani\u017e byste o zpr\u00e1vu sami po\u017e\u00e1dali, n\u011bkdo se sna\u017e\u00ed k va\u0161emu \u00fa\u010dtu dostat. Dbejte vysok\u00e9 opatrnosti a tento PIN nesd\u011blujte, ani kdyby v\u00e1s o n\u011bj \u017e\u00e1dali bl\u00edzc\u00ed a p\u0159\u00e1tel\u00e9. Setkali jsme se s \u00fatokem, p\u0159i n\u011bm\u017e \u00fato\u010dn\u00edci \u017e\u00e1dali o zasl\u00e1n\u00ed PIN k\u00f3du skrze ukraden\u00e9 profily Facebook p\u0159\u00e1tel<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u00dato\u010dn\u00edk z\u00edskal p\u0159\u00edstup k ov\u011b\u0159en\u00fdm kontakt\u016fm<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nejedn\u00e1 se o \u010dastou situaci, ale m\u016f\u017ee nastat \u2013 a\u0165 u\u017e ve form\u011b ztr\u00e1ty telefonu, kopie SIM karty nebo napaden\u00e9 e-mailov\u00e9 adresy, kterou m\u00e1te u jin\u00e9ho \u00fa\u010dtu nastavenou jako z\u00e1chrannou<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Heslo bylo slab\u00e9 a n\u011bkdo jej uhodl\/vid\u011bl u\u017eivatele jej zad\u00e1vat<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Je velkou chybou pou\u017e\u00edvat heslo, kter\u00e9 se jakkoli podobn\u00e1 samotn\u00e9mu n\u00e1zvu e-mailov\u00e9 adresy nebo obsahuje \u00fadaje, kter\u00e9 lze spojit s va\u0161\u00ed osobou (jm\u00e9na rodinn\u00fdch p\u0159\u00edslu\u0161n\u00edk\u016f \u010di dom\u00e1c\u00edch mazl\u00ed\u010dk\u016f, data narozen\u00ed, p\u0159ezd\u00edvky\u2026). V\u00edce v \u010dl\u00e1nku <a href=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/zabezpeceni-uctu\/bezpecne-heslo\/\" data-type=\"page\" data-id=\"135\">Bezpe\u010dn\u00e9 heslo<\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Po\u010d\u00edta\u010d u\u017eivatele byl napaden virem (malwarem) nebo p\u0159ipojen na nezabezpe\u010den\u00e9 s\u00edti<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Heslo je mo\u017en\u00e9 v\u00fdjime\u010dn\u011b vysledovat na po\u010d\u00edta\u010di u\u017eivatele p\u0159i jeho zad\u00e1v\u00e1n\u00ed (software, kter\u00fd zaznamen\u00e1v\u00e1 \u00fadery na kl\u00e1vesnici nebo jej dok\u00e1\u017ee jinak vy\u010d\u00edst), p\u0159\u00edpadn\u011b je-li \u00fato\u010dn\u00edk p\u0159ipojen na stejn\u00e9 Wi-Fi s\u00edti, m\u016f\u017ee heslo zachytit ve chv\u00edli, kdy se p\u0159ihl\u00e1s\u00edte na nezabezpe\u010den\u00e9 webov\u00e9 str\u00e1nce<\/li>\n<\/ul>\n\n\t<\/div>\n\t\t\t<button class=\"wp-block-seznam-content-limiter__button circle-button circle-button--up\"><\/button>\n\t<\/div><\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\" id=\"nejlepsi-prevence\">Jak\u00e1 je nejlep\u0161\u00ed prevence?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Abyste sv\u016fj \u00fa\u010det dostate\u010dn\u011b zabezpe\u010dili proti \u00fatok\u016fm zven\u010d\u00ed, je t\u0159eba prov\u00e9st p\u00e1r vcelku jednoduch\u00fdch krok\u016f. Seznam \u00fa\u010dty maj\u00ed n\u011bkolik nastaven\u00ed, kter\u00e1 zvy\u0161uj\u00ed zabezpe\u010den\u00ed \u00fa\u010dtu. V neposledn\u00ed \u0159ad\u011b je dobr\u00e9 udr\u017eovat si b\u011b\u017enou obez\u0159etnost\u2026<\/li>\n<\/ul>\n\n\n\n<div style=\"--content-limiter--height:7rem\" class=\"is-collapsed wp-block-seznam-content-limiter\">\n\t<div class=\"inner-blocks is-layout-flow\">\t\n\t\t\n\n<h3 class=\"wp-block-heading\">Bezpe\u010dn\u00e9 heslo<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Z\u00e1kladem je pro sv\u016fj Seznam \u00fa\u010det pou\u017e\u00edvat siln\u00e9 a bezpe\u010dn\u00e9 heslo, kter\u00e9 nepou\u017e\u00edv\u00e1te nikde jinde na internetu. Takov\u00e9, kter\u00e9 nem\u016f\u017ee n\u011bkdo, kdo v\u00e1s zn\u00e1, uhodnout. Zkuste zv\u00e1\u017eit tak\u00e9 pou\u017eit\u00ed spr\u00e1vce hesel. Jak si zvolit bezpe\u010dn\u00e9 heslo jsme sepsali v \u010dl\u00e1nku <a href=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/zabezpeceni-uctu\/bezpecne-heslo\/\" data-type=\"page\" data-id=\"135\">Bezpe\u010dn\u00e9 heslo<\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Bezpe\u010dn\u00e9 chov\u00e1n\u00ed na internetu<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>P\u0159e\u010dt\u011bte si <a href=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/zasady-bezpecnosti\/bezpecne-chovani\/\">pravidla bezpe\u010dn\u00e9ho chov\u00e1n\u00ed na internetu<\/a>, jen tak budete p\u0159ipraveni. V\u0161\u00edmejte si podez\u0159el\u00e9 aktivity, naopak ignorujte podivn\u00e9 e-maily, kter\u00e9 se zdaj\u00ed neseri\u00f3zn\u00ed. Kontrolujte adresu str\u00e1nky, na kter\u00e9 zad\u00e1v\u00e1te heslo a nikdy sv\u00e9 heslo ani dal\u0161\u00ed zabezpe\u010dovac\u00ed \u00fadaje (kontakty, PIN k\u00f3dy apod.) nesd\u011blujte nikomu dal\u0161\u00edmu<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Dvouf\u00e1zov\u00e9 ov\u011b\u0159en\u00ed<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zva\u017ete aktivaci dvouf\u00e1zov\u00e9ho ov\u011b\u0159en\u00ed. Funkce v\u00e1s upozorn\u00ed na p\u0159ihl\u00e1\u0161en\u00ed na nov\u00e9m za\u0159\u00edzen\u00ed. Pokud se do schr\u00e1nky zkus\u00ed n\u011bkdo p\u0159ihl\u00e1sit, vysko\u010d\u00ed v\u00e1m notifikace na telefonu\/po\u010d\u00edta\u010di a m\u016f\u017eete mu v p\u0159ihl\u00e1\u0161en\u00ed zamezit<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Z\u00e1chrann\u00e9 ov\u011b\u0159en\u00e9 kontakty<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/zabezpeceni-uctu\/zachranne-telefonni-cislo\/\" data-type=\"page\" data-id=\"143\">Ov\u011b\u0159en\u00e9 telefonn\u00ed \u010d\u00edslo<\/a> nebo <a href=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/zabezpeceni-uctu\/zachranny-email\/\" data-type=\"page\" data-id=\"141\">ov\u011b\u0159en\u00e1 e-mailov\u00e1 adresa<\/a> jsou d\u016fle\u017eitou prevenc\u00ed. S ov\u011b\u0159en\u00fdmi kontakty m\u00e1te mnohon\u00e1sobn\u011b vy\u0161\u0161\u00ed \u0161anci z\u00edskat zp\u011bt p\u0159\u00edstup k \u00fa\u010dtu, u kter\u00e9ho do\u0161lo ke zm\u011bn\u011b hesla \u00fato\u010dn\u00edkem.<\/li>\n\n\n\n<li>Nastaven\u00ed z\u00e1chrann\u00fdch kontakt\u016f m\u00e1 je\u0161t\u011b dal\u0161\u00ed funkci \u2013 pokud u \u00fa\u010dtu registrujeme podez\u0159elou zm\u011bnu hesla, za\u0161leme v\u00e1m na ov\u011b\u0159en\u00fd kontakt tzv. <a href=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/zabezpeceni-uctu\/zruseni-zmeny-hesla\/\" data-type=\"page\" data-id=\"149\">Veto zm\u011bny hesla<\/a>. P\u0159es veto m\u016f\u017eete ihned zm\u011bnu stornovat a nastavit zp\u011bt vlastn\u00ed heslo. Preferov\u00e1na je e-mailov\u00e1 adresa, pokud ji \u00fa\u010det nem\u00e1, p\u0159ijde veto prost\u0159ednictv\u00edm SMS. Veto nezas\u00edl\u00e1me ke ka\u017ed\u00e9 zm\u011bn\u011b hesla, ale pouze k t\u00e9, kter\u00e1 se jev\u00ed jako podez\u0159el\u00e1<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"115\" src=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-content\/uploads\/sites\/10\/2024\/10\/profil-overene-kontakty.png\" alt=\"\" class=\"wp-image-801\" srcset=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-content\/uploads\/sites\/10\/2024\/10\/profil-overene-kontakty.png 650w, https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-content\/uploads\/sites\/10\/2024\/10\/profil-overene-kontakty-320x57.png 320w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Ochrana proti malwaru a vir\u016fm<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>V r\u00e1mci obecn\u00e9 ochrany po\u010d\u00edta\u010de plat\u00ed, \u017ee je vhodn\u00e9 pou\u017e\u00edvat antivirov\u00e9 programy a m\u00edt aktivn\u00ed firewall. Tyto aplikace b\u011b\u017e\u00ed na pozad\u00ed syst\u00e9mu a kontroluj\u00ed internetov\u00fd provoz, kontroluj\u00ed stahovan\u00e9 soubory, otev\u00edran\u00e9 p\u0159\u00edlohy, nav\u0161t\u011bvovan\u00e9 webov\u00e9 str\u00e1nky a dal\u0161\u00ed potencion\u00e1ln\u00ed zdroje vir\u016f, malwaru, spywaru a dal\u0161\u00edch typ\u016f n\u00e1kaz. Po\u010d\u00edta\u010d naka\u017een\u00fd \u0161kodliv\u00fdm programem m\u016f\u017ee odes\u00edlat citliv\u00e9 informace \u00fato\u010dn\u00edkovi, to pak \u010dasto kon\u010d\u00ed odcizen\u00edm p\u0159\u00edstupov\u00fdch \u00fadaj\u016f. S\u00e1m po\u010d\u00edta\u010d rovn\u011b\u017e m\u016f\u017ee rozes\u00edlat spam, p\u0159\u00edpadn\u011b se st\u00e1t sou\u010d\u00e1st\u00ed v\u011bt\u0161\u00ed s\u00edt\u011b, kter\u00e1 n\u00e1kazu \u0161\u00ed\u0159\u00ed d\u00e1le<\/li>\n<\/ul>\n\n\t<\/div>\n\t\t\t<button class=\"wp-block-seznam-content-limiter__button circle-button circle-button--up\"><\/button>\n\t<\/div><\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\" id=\"co-delat\">Co d\u011blat, kdy\u017e je \u00fa\u010det zablokov\u00e1n?<\/h2>\n\n\n\n<p>Objev\u00edme-li u \u00fa\u010dtu znaky, kter\u00e9 vedou k podez\u0159en\u00ed, \u017ee byl \u00fa\u010det napaden, syst\u00e9m jej m\u016f\u017ee automaticky zablokovat. Takov\u00fdm znakem je nap\u0159\u00edklad sled podez\u0159el\u00fdch nastaven\u00ed nebo rozes\u00edl\u00e1n\u00ed zv\u00fd\u0161en\u00e9ho po\u010dtu zpr\u00e1v. Na Seznamu existuj\u00ed dv\u011b formy blokace u\u017eivatelsk\u00e9ho \u00fa\u010dtu \u2013 vynucen\u00e1 zm\u011bna hesla a blokace.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Hl\u00e1\u0161en\u00ed \u201eN\u011bkdo se v\u00e1m naboural do \u00fa\u010dtu\u201c<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vyhodnotili jsme, \u017ee \u00fa\u010det by mohl b\u00fdt v nepo\u0159\u00e1dku. Je u n\u011bj nutn\u00e1 okam\u017eit\u00e1 zm\u011bna hesla, aby se zabr\u00e1nilo jeho dal\u0161\u00edmu zneu\u017eiv\u00e1n\u00ed. Tento typ blokace se vyskytuje nej\u010dast\u011bji u \u00fa\u010dt\u016f napaden\u00fdch za \u00fa\u010delem rozesl\u00e1n\u00ed spamu. Zneu\u017e\u00edv\u00e1n\u00ed slu\u017eeb Seznamu k rozes\u00edl\u00e1n\u00ed spamu po\u0161kozuje reputaci na\u0161ich server\u016f u ostatn\u00edch poskytovatel\u016f e-mailov\u00fdch slu\u017eeb, co\u017e ve v\u00fdsledku po\u0161kozuje i na\u0161e koncov\u00e9 u\u017eivatele. Majitel napaden\u00e9ho \u00fa\u010dtu mus\u00ed prov\u00e9st kroky k n\u00e1prav\u011b, tzn. zm\u011bnu hesla u \u00fa\u010dtu a kontrolu vlastn\u00edch za\u0159\u00edzen\u00ed na p\u0159\u00edtomnost vir\u016f. V\u00edce se do\u010dtete v \u010dl\u00e1nku <a href=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/zabezpeceni-uctu\/vynucena-zmena-hesla\/\" data-type=\"page\" data-id=\"147\">Vynucen\u00e1 zm\u011bna hesla<\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Hl\u00e1\u0161en\u00ed \u201eV\u00e1\u0161 \u00fa\u010det je blokov\u00e1n\u201c<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Toto hl\u00e1\u0161en\u00ed znamen\u00e1, \u017ee \u00fa\u010det byl blokov\u00e1n. Pro podrobn\u011bj\u0161\u00ed informace si p\u0159e\u010dt\u011bte <a href=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/zabezpeceni-uctu\/blokace-seznam-uctu\/\" data-type=\"page\" data-id=\"151\">Blokace Seznam \u00fa\u010dtu<\/a>. Jako n\u00e1sleduj\u00edc\u00ed krok m\u016f\u017eete kontaktovat na\u0161i u\u017eivatelskou podporu a prov\u011b\u0159it spolu d\u016fvody blokace a mo\u017en\u00e9 odblokov\u00e1n\u00ed.<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\" id=\"jak-postupovat\">Jak postupovat, pokud nem\u00e1m k \u00fa\u010dtu p\u0159\u00edstup?<\/h2>\n\n\n\n<p>Nach\u00e1z\u00edte-li se v situaci, kdy ji\u017e ke kr\u00e1de\u017ei \u00fa\u010dtu do\u0161lo a vy se do n\u011bj nyn\u00ed nedok\u00e1\u017eete p\u0159ihl\u00e1sit, proto\u017ee \u00fato\u010dn\u00edk zm\u011bnil heslo, jedin\u00fdm \u0159e\u0161en\u00edm je postupovat p\u0159es Zapomenut\u00e9 heslo. Postup pro obnovu hesla jste pro v\u00e1s p\u0159ipravili v \u010dl\u00e1nku <a href=\"https:\/\/o-seznam.cz\/napoveda\/ucet\/zapomenute-heslo\/jak-na-to\/\" data-type=\"page\" data-id=\"153\">Jak na zapomenut\u00e9 heslo<\/a>. Jin\u00e9 \u0159e\u0161en\u00ed, jak p\u0159\u00edstup obnovit, bohu\u017eel neexistuje.<\/p>\n\n\n\n<p>Jakmile obnov\u00edte sv\u016fj p\u0159\u00edstup do \u00fa\u010dtu, dbejte na v\u0161echna pravidla bezpe\u010dn\u00e9ho chov\u00e1n\u00ed na internetu a prove\u010fte preventivn\u00ed opat\u0159en\u00ed popsan\u00e1 v \u010d\u00e1sti Jak\u00e1 je nejlep\u0161\u00ed prevence?.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Kr\u00e1de\u017e \u00fa\u010dtu je obt\u00ed\u017en\u00e1 a mnohdy nebezpe\u010dn\u00e1 situace. Kdy\u017e si uv\u011bdom\u00edme, jak\u00e9 informace mnoho z n\u00e1s uchov\u00e1v\u00e1 ve sv\u00e9 e-mailov\u00e9 schr\u00e1nce, u\u017e samotn\u00fd fakt, \u017ee tyto informace mohl n\u011bkdo vid\u011bt, je nep\u0159\u00edjemn\u00fd. Pokud se domn\u00edv\u00e1te, \u017ee jste v bezpe\u010d\u00ed, proto va\u0161e data p\u0159eci \u201enemohou nikoho zaj\u00edmat\u201c, v\u011bzte, \u017ee \u00fato\u010dn\u00edkovi je jedno, jak\u00e1 data z\u00edsk\u00e1 nebo [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"parent":102,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-sidemenu","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"page_category":[24],"page_tag":[],"service_status_category":[],"class_list":["post-196","page","type-page","status-publish","hentry"],"acf":[],"lang":"cs","translations":{"cs":196,"en":1723},"pll_sync_post":[],"_links":{"self":[{"href":"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-json\/wp\/v2\/pages\/196","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-json\/wp\/v2\/comments?post=196"}],"version-history":[{"count":23,"href":"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-json\/wp\/v2\/pages\/196\/revisions"}],"predecessor-version":[{"id":1722,"href":"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-json\/wp\/v2\/pages\/196\/revisions\/1722"}],"up":[{"embeddable":true,"href":"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-json\/wp\/v2\/pages\/102"}],"wp:attachment":[{"href":"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-json\/wp\/v2\/media?parent=196"}],"wp:term":[{"taxonomy":"page_category","embeddable":true,"href":"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-json\/wp\/v2\/page_category?post=196"},{"taxonomy":"page_tag","embeddable":true,"href":"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-json\/wp\/v2\/page_tag?post=196"},{"taxonomy":"service_status_category","embeddable":true,"href":"https:\/\/o-seznam.cz\/napoveda\/ucet\/wp-json\/wp\/v2\/service_status_category?post=196"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}