{"id":7463,"date":"2026-10-12T13:04:11","date_gmt":"2026-10-12T11:04:11","guid":{"rendered":"https:\/\/eu.klytic.com\/prilohy-odkazy-ransomware-e-mail\/"},"modified":"2026-10-12T16:14:20","modified_gmt":"2026-10-12T14:14:20","slug":"prilohy-odkazy-ransomware-e-mail","status":"publish","type":"page","link":"https:\/\/eu.klytic.com\/cs\/prilohy-odkazy-ransomware-e-mail\/","title":{"rendered":"P\u0159\u00edlohy, odkazy a ransomware v e-mailu"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"7463\" class=\"elementor elementor-7463 elementor-6301\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6d7d519 e-con-full kly-g e-flex e-con e-parent\" data-id=\"6d7d519\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-e33e5ca e-con-full kly-g-hero e-flex e-con e-parent\" data-id=\"e33e5ca\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-6afb2b7 e-con-full kly-g-hero-in e-flex e-con e-parent\" data-id=\"6afb2b7\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-50d8f4e elementor-widget elementor-widget-text-editor\" data-id=\"50d8f4e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p class=\"kly-g-crumb\"><a href=\"\/\">Dom\u016f<\/a><span>\u203a<\/span>P\u0159\u00edru\u010dky<span>\u203a<\/span>Zabezpe\u010den\u00ed e-mail\u016f<\/p><p class=\"kly-g-pill\" style=\"--pill:#f87171\">Zabezpe\u010den\u00ed e-mail\u016f \u00b7 Pochopit<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bcd61ad elementor-widget elementor-widget-heading\" data-id=\"bcd61ad\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">P\u0159\u00edlohy, odkazy a ransomware v e-mailu<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bc0cbda elementor-widget elementor-widget-text-editor\" data-id=\"bc0cbda\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p class=\"kly-g-lead\">Podle ANSSI je e-mail hlavn\u00edm vektorem infekce pracovn\u00edch stanic: k proniknut\u00ed \u0161kodliv\u00e9ho programu, v\u010detn\u011b ransomwaru, sta\u010d\u00ed p\u0159\u00edloha nebo odkaz. Filtr um\u00edst\u011bn\u00fd p\u0159ed schr\u00e1nkou dok\u00e1\u017ee analyzovat soubory a odkazy, odstranit nebezpe\u010dnou p\u0159\u00edlohu a znovu ov\u011b\u0159it odkaz v okam\u017eiku kliknut\u00ed. Nenahrad\u00ed v\u0161ak opatrnost u\u017eivatele ani z\u00e1lohu, kterou \u00fato\u010dn\u00edk nem\u016f\u017ee smazat.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6a72e54 elementor-widget elementor-widget-text-editor\" data-id=\"6a72e54\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p class=\"kly-g-meta\"><span>Aktualizov\u00e1no: <b>\u0159\u00edjen 2026<\/b><\/span><span><b>6 min<\/b><\/span><span>Citovan\u00e9 ofici\u00e1ln\u00ed zdroje<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-23890a1 e-con-full kly-g-body e-flex e-con e-parent\" data-id=\"23890a1\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-2fea1d8 e-con-full kly-g-article e-flex e-con e-parent\" data-id=\"2fea1d8\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1a6ced5 elementor-widget elementor-widget-text-editor\" data-id=\"1a6ced5\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Co se v p\u0159\u00edloze zkoum\u00e1<\/h2>\n<ul>\n<li><strong>Antivirus<\/strong>: porovn\u00e1n\u00ed se zn\u00e1m\u00fdmi \u0161kodliv\u00fdmi programy. \u00da\u010dinn\u00fd u toho, co u\u017e kolov\u00e1, m\u00e9n\u011b u souboru vytvo\u0159en\u00e9ho pro jedinou kampa\u0148.<\/li>\n<li><strong>Makra Office<\/strong>: dokument Word nebo Excel, kter\u00fd obsahuje k\u00f3d a \u017e\u00e1d\u00e1 o \u201epovolen\u00ed obsahu\u201c, aby ho spustil. Je to star\u00fd, st\u00e1le pou\u017e\u00edvan\u00fd postup.<\/li>\n<li><strong>PDF<\/strong>: skripty, skryt\u00e9 odkazy, formul\u00e1\u0159e, kter\u00e9 vedou na fale\u0161nou p\u0159ihla\u0161ovac\u00ed str\u00e1nku.<\/li>\n<li><strong>Soubory HTML<\/strong>: p\u0159\u00edloha, kter\u00e1 se otev\u0159e v prohl\u00ed\u017ee\u010di a napodobuje p\u0159ihla\u0161ovac\u00ed str\u00e1nku, ani\u017e by vedla p\u0159es web, kter\u00fd by bylo mo\u017en\u00e9 zablokovat.<\/li>\n<li><strong>Obr\u00e1zky<\/strong>: QR k\u00f3d obsahuj\u00edc\u00ed odkaz nebo text skryt\u00fd v obr\u00e1zku, aby unikl anal\u00fdze textu.<\/li>\n<\/ul>\n<p>Kdy\u017e je p\u0159\u00edloha vyhodnocena jako nebezpe\u010dn\u00e1, p\u0159ich\u00e1zej\u00ed v \u00favahu dv\u011b rozumn\u00e1 \u0159e\u0161en\u00ed: odstranit p\u0159\u00edlohu a doru\u010dit zpr\u00e1vu s pozn\u00e1mkou, kter\u00e1 to vysv\u011btluje, nebo celou zpr\u00e1vu p\u0159esunout do karant\u00e9ny. V obou p\u0159\u00edpadech se soubor na pracovn\u00ed stanici nedostane.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ff628f4 elementor-widget elementor-widget-text-editor\" data-id=\"ff628f4\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Odkazy: p\u0159i doru\u010den\u00ed a pak p\u0159i kliknut\u00ed<\/h2>\n<p>Odkaz se analyzuje ve zpr\u00e1v\u011b: reputace adresy a dom\u00e9ny, podobnost se zn\u00e1mou zna\u010dkou, ned\u00e1vno vytvo\u0159en\u00e1 dom\u00e9na. QR k\u00f3d p\u0159edstavuje zvl\u00e1\u0161tn\u00ed probl\u00e9m: p\u0159esouv\u00e1 odkaz z chr\u00e1n\u011bn\u00e9ho po\u010d\u00edta\u010de do soukrom\u00e9ho telefonu, kter\u00fd b\u00fdv\u00e1 chr\u00e1n\u011bn m\u00e9n\u011b. P\u0159e\u010dten\u00ed k\u00f3du v obr\u00e1zku vrac\u00ed tento odkaz zp\u011bt pod kontrolu.<\/p>\n<p>Odkaz, kter\u00fd je v 9 hodin bezpe\u010dn\u00fd, v\u0161ak m\u016f\u017ee b\u00fdt ve 14 hodin \u0161kodliv\u00fd. Podvodn\u00edci nejprve po\u0161lou odkaz na ne\u0161kodnou str\u00e1nku a str\u00e1nku zm\u011bn\u00ed, a\u017e kdy\u017e je zpr\u00e1va doru\u010dena. Proto existuje ochrana p\u0159i kliknut\u00ed: odkaz je p\u0159eps\u00e1n tak, aby v okam\u017eiku kliknut\u00ed pro\u0161el kontrolou. Pokud se str\u00e1nka stala nebezpe\u010dnou, kliknut\u00ed je zastaveno, i kdy\u017e byla zpr\u00e1va doru\u010dena.<\/p>\n<h3>Odkazy ke sd\u00edlen\u00ed<\/h3>\n<p>St\u00e1le v\u00edce \u0161kodliv\u00fdch zpr\u00e1v neobsahuje \u017e\u00e1dnou p\u0159\u00edlohu: odkazuj\u00ed na dokument ulo\u017een\u00fd ve zn\u00e1m\u00e9 slu\u017eb\u011b pro sd\u00edlen\u00ed soubor\u016f. Dom\u00e9na odkazu pak m\u00e1 vynikaj\u00edc\u00ed reputaci, proto\u017ee pat\u0159\u00ed velk\u00e9 slu\u017eb\u011b. Anal\u00fdza se mus\u00ed zam\u011b\u0159it na ostatn\u00ed: je odes\u00edlatel obvykl\u00fd, p\u016fsob\u00ed zpr\u00e1va jako kampa\u0148, \u017e\u00e1d\u00e1 otev\u0159en\u00e1 str\u00e1nka o heslo? Pr\u00e1v\u011b zde je kontrola p\u0159i kliknut\u00ed a detekce neobvykl\u00e9ho chov\u00e1n\u00ed d\u016fle\u017eit\u011bj\u0161\u00ed ne\u017e seznam nebezpe\u010dn\u00fdch dom\u00e9n.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-99c8290 elementor-widget elementor-widget-text-editor\" data-id=\"99c8290\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Ransomware: co br\u00e1na dok\u00e1\u017ee a co ne<\/h2>\n<p>Cybermalveillance.gouv.fr popisuje ransomware jako \u00fatok, kter\u00fd zablokuje p\u0159\u00edstup k syst\u00e9mu nebo za\u0161ifruje data a n\u011bkdy hroz\u00ed jejich zve\u0159ejn\u011bn\u00edm, v\u00fdm\u011bnou za v\u00fdkupn\u00e9. Tento syst\u00e9m uv\u00e1d\u00ed, \u017ee k pr\u016fniku obvykle doch\u00e1z\u00ed p\u0159es zranitelnost nebo \u0161patn\u011b zabezpe\u010den\u00fd vzd\u00e1len\u00fd p\u0159\u00edstup, nebo kompromitac\u00ed \u00fa\u010dtu \u010di za\u0159\u00edzen\u00ed prost\u0159ednictv\u00edm phishingu nebo \u0161kodliv\u00e9ho programu.<\/p>\n<p>E-mail nen\u00ed jedinou vstupn\u00ed branou, ale ANSSI ho ozna\u010duje za \u201ehlavn\u00ed vektor infekce pracovn\u00edch stanic\u201c (p\u0159eklad). Stejn\u00fd \u00fa\u0159ad uv\u00e1d\u00ed \u201ezas\u00edl\u00e1n\u00ed \u0161kodliv\u00fdch p\u0159\u00edloh za \u00fa\u010delem zneu\u017eit\u00ed zranitelnost\u00ed pracovn\u00ed stanice k vyd\u00edr\u00e1n\u00ed nebo \u0161pion\u00e1\u017ei\u201c (p\u0159eklad). Je to tak\u00e9 vstup, kter\u00fd lze filtrovat d\u0159\u00edv, ne\u017e se dostane do schr\u00e1nky. Typick\u00fd pr\u016fb\u011bh p\u0159es e-mail:<\/p>\n<ol>\n<li>zpr\u00e1va s p\u0159\u00edlohou nebo odkazem;<\/li>\n<li>povolen\u00e9 makro nebo heslo zadan\u00e9 na fale\u0161n\u00e9 str\u00e1nce;<\/li>\n<li>p\u0159\u00edstup do s\u00edt\u011b nebo k \u00fa\u010dt\u016fm;<\/li>\n<li>pozd\u011bji, n\u011bkdy a\u017e po n\u011bkolika t\u00fddnech, za\u0161ifrov\u00e1n\u00ed soubor\u016f.<\/li>\n<\/ol>\n<p>P\u0159\u00edklad pro ilustraci. Zam\u011bstnanec obdr\u017e\u00ed \u201eneuhrazenou fakturu\u201c ve form\u00e1tu Word. Dokument zobraz\u00ed rozmazan\u00fd prou\u017eek a \u017e\u00e1d\u00e1 o povolen\u00ed obsahu, aby ho bylo mo\u017en\u00e9 p\u0159e\u010d\u00edst. Pokud to zam\u011bstnanec ud\u011bl\u00e1, makro st\u00e1hne program, kter\u00fd \u00fato\u010dn\u00edkovi otev\u0159e p\u0159\u00edstup k pracovn\u00ed stanici. Soubory na serveru budou za\u0161ifrov\u00e1ny a\u017e pozd\u011bji. Pokud je p\u0159\u00edloha odstran\u011bna p\u0159i doru\u010den\u00ed, tento \u0159et\u011bzec v\u016fbec neza\u010dne; pokud projde, v\u0161e z\u00e1vis\u00ed na reflexu makro nepovolit a pot\u00e9 na z\u00e1loze.<\/p>\n<p>Br\u00e1na p\u016fsob\u00ed v prvn\u00edm kroku. Nevid\u00ed pr\u016fnik p\u0159es vzd\u00e1len\u00fd p\u0159\u00edstup ani \u00fa\u010det, kter\u00fd u\u017e byl otev\u0159en heslem odcizen\u00fdm jinde. Nic neobnovuje.<\/p>\n<p>Cybermalveillance.gouv.fr doporu\u010duje pravideln\u00e9 z\u00e1lohy, odpojen\u00e9 kopie, ov\u011b\u0159en\u00e9 obnovy a neprodlen\u011b instalovan\u00e9 aktualizace. Doporu\u010duje tak\u00e9 v\u00fdkupn\u00e9 neplatit. Pro va\u0161e soubory se t\u00e9to ot\u00e1zce v\u011bnuje pr\u016fvodce <a href='\/cs\/dms-ransomware-obnova\/'>ransomware: ochrana a obnova syst\u00e9mu pro spr\u00e1vu dokument\u016f (DMS)<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-18dbf68 elementor-widget elementor-widget-text-editor\" data-id=\"18dbf68\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Co z\u016fst\u00e1v\u00e1 na \u010dlov\u011bku<\/h2>\n<ul>\n<li>Nepovolovat makra v dokumentu p\u0159ijat\u00e9m e-mailem, i kdy\u017e o to zdvo\u0159ile \u017e\u00e1d\u00e1.<\/li>\n<li>Nezad\u00e1vat heslo na str\u00e1nce otev\u0159en\u00e9 z p\u0159ijat\u00e9ho odkazu; pou\u017e\u00edt obvyklou adresu nebo z\u00e1lo\u017eku. Cybermalveillance.gouv.fr tak\u00e9 doporu\u010duje zkontrolovat adresu webu, kde se m\u016f\u017ee zm\u011bnit jedin\u00fd znak.<\/li>\n<li>Neskenovat QR k\u00f3d p\u0159ijat\u00fd e-mailem kv\u016fli \u201ep\u0159ihl\u00e1\u0161en\u00ed\u201c.<\/li>\n<li>Podez\u0159elou zpr\u00e1vu nahl\u00e1sit, m\u00edsto aby se smazala: hl\u00e1\u0161en\u00ed pom\u00e1h\u00e1 filtru a varuje kolegy.<\/li>\n<li>Neuvol\u0148ovat z karant\u00e9ny zpr\u00e1vu, kterou jste ne\u010dekali, jen abyste vid\u011bli, co obsahuje.<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-04757c2 elementor-widget elementor-widget-text-editor\" data-id=\"04757c2\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Meze ka\u017ed\u00e9 anal\u00fdzy<\/h2>\n<ul>\n<li><strong>Soubor za\u0161ifrovan\u00fd odes\u00edlatelem<\/strong>: archiv chr\u00e1n\u011bn\u00fd heslem, kter\u00e9 je uvedeno ve zpr\u00e1v\u011b, je pro filtr ne\u010diteln\u00fd. Jde o zn\u00e1mou techniku obch\u00e1zen\u00ed; \u0159e\u0161\u00ed se pravidlem (karant\u00e9na, varov\u00e1n\u00ed), nikoli anal\u00fdzou obsahu.<\/li>\n<li><strong>Nov\u00fd \u0161kodliv\u00fd dokument<\/strong> bez zn\u00e1m\u00e9 signatury m\u016f\u017ee antivirem proj\u00edt. \u0160tafetu pak p\u0159eb\u00edraj\u00ed ostatn\u00ed sign\u00e1ly (odes\u00edlatel, kontext, makra), bez z\u00e1ruky.<\/li>\n<li><strong>Legitimn\u00ed kompromitovan\u00fd \u00fa\u010det<\/strong>, kter\u00fd pos\u00edl\u00e1 skute\u010dnou fakturu se \u0161kodliv\u00fdm obsahem, t\u011b\u017e\u00ed z d\u016fv\u011bry v odes\u00edlatele.<\/li>\n<li><strong>Odkaz, kter\u00fd se stane \u0161kodliv\u00fdm dodate\u010dn\u011b<\/strong>, projde, pokud ho nikdo znovu neov\u011b\u0159\u00ed v okam\u017eiku kliknut\u00ed.<\/li>\n<li><strong>Intern\u00ed zpr\u00e1va<\/strong> vym\u011bn\u011bn\u00e1 mezi dv\u011bma schr\u00e1nkami t\u00e9ho\u017e e-mailov\u00e9ho syst\u00e9mu, kter\u00e1 jej neopust\u00ed, neproch\u00e1z\u00ed br\u00e1nou um\u00edst\u011bnou p\u0159ed n\u00edm: vid\u00ed ji filtr e-mailov\u00e9ho syst\u00e9mu, nebo nikdo.<\/li>\n<\/ul>\n<p>Karant\u00e9na existuje pro sporn\u00e9 p\u0159\u00edpady: zpr\u00e1va nen\u00ed doru\u010dena ani ztracena. Viz <a href='\/cs\/karantena-falesne-poplachy\/'>Karant\u00e9na, fale\u0161n\u00e9 poplachy a hl\u00e1\u0161en\u00ed<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f1958d0 elementor-widget elementor-widget-text-editor\" data-id=\"f1958d0\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>\u010cast\u00e9 dotazy<\/h2>\n<h3>Je odstran\u011bn\u00e1 p\u0159\u00edloha ztracena?<\/h3>\n<p>Zpr\u00e1va doraz\u00ed s pozn\u00e1mkou, kter\u00e1 odstran\u011bn\u00ed vysv\u011btluje. Pokud byla p\u0159\u00edloha legitimn\u00ed, spr\u00e1vce nebo p\u0159\u00edjemce pou\u017eije karant\u00e9nu: viz <a href='\/cs\/karantena-falesne-poplachy\/'>Karant\u00e9na, fale\u0161n\u00e9 poplachy a hl\u00e1\u0161en\u00ed<\/a>.<\/p>\n<h3>M\u016f\u017ee b\u00fdt PDF opravdu nebezpe\u010dn\u00e9?<\/h3>\n<p>Ano: m\u016f\u017ee obsahovat skripty nebo v\u00e9st na fale\u0161nou p\u0159ihla\u0161ovac\u00ed str\u00e1nku. Proto se kontroluje stejn\u011b jako dokument Office.<\/p>\n<h3>Pro\u010d je odkaz ov\u011b\u0159en\u00fd v\u010dera dnes zablokov\u00e1n?<\/h3>\n<p>Str\u00e1nka se od doru\u010den\u00ed zm\u011bnila. Ochrana p\u0159i kliknut\u00ed posuzuje str\u00e1nku v okam\u017eiku, kdy ji otev\u0159ete.<\/p>\n<h3>Sta\u010d\u00ed br\u00e1na proti ransomwaru?<\/h3>\n<p>Ne. Omezuje vstup p\u0159es e-mail. Zbytek obstaraj\u00ed aktualizace, zabezpe\u010den\u00ed vzd\u00e1len\u00fdch p\u0159\u00edstup\u016f a z\u00e1lohov\u00e1n\u00ed. Viz <a href='\/cs\/dms-ransomware-obnova\/'>ransomware: ochrana a obnova syst\u00e9mu pro spr\u00e1vu dokument\u016f (DMS)<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b5af95b kly-g-klytic elementor-widget elementor-widget-text-editor\" data-id=\"b5af95b\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Kde se nach\u00e1z\u00ed Klytic<\/h2>\n<p>Rozd\u011blen\u00ed funkc\u00ed <a href='\/cs\/klytic-mta\/'>Klytic MTA<\/a> mezi ob\u011b nab\u00eddky, tak jak je zve\u0159ejn\u011bno:<\/p>\n<div class=\"kly-table\"><table><thead><tr><th>Anal\u00fdza<\/th><th>Essential<\/th><th>Advanced<\/th><\/tr><\/thead><tbody>\n<tr><td>Antivirus a \u0161ifrovan\u00e1 karant\u00e9na<\/td><td>Ano<\/td><td>Ano<\/td><\/tr>\n<tr><td>Nebezpe\u010dn\u00e1 makra Office a PDF<\/td><td>Ano<\/td><td>Ano<\/td><\/tr>\n<tr><td>Anti-phishing, zneu\u017eit\u00ed zna\u010dky, QR k\u00f3dy<\/td><td>Ano<\/td><td>Ano<\/td><\/tr>\n<tr><td>Odstran\u011bn\u00ed nebezpe\u010dn\u00fdch p\u0159\u00edloh s informa\u010dn\u00ed zpr\u00e1vou<\/td><td>Ano<\/td><td>Ano<\/td><\/tr>\n<tr><td>Bezpe\u010dn\u00e9 uvoln\u011bn\u00ed z karant\u00e9ny a notifikace<\/td><td>Ano<\/td><td>Ano<\/td><\/tr>\n<tr><td>Nebezpe\u010dn\u00e9 soubory HTML a skryt\u00fd text v obr\u00e1zc\u00edch<\/td><td>Ne<\/td><td>Ano<\/td><\/tr>\n<tr><td>Odkazy znovu analyzovan\u00e9 v okam\u017eiku kliknut\u00ed<\/td><td>Ne<\/td><td>Ano<\/td><\/tr>\n<\/tbody><\/table><\/div>\n<p>Klytic MTA funguje p\u0159ed jak\u00fdmkoli e-mailov\u00fdm syst\u00e9mem, bez Klytic Mail. Nenahrazuje z\u00e1lohov\u00e1n\u00ed va\u0161ich soubor\u016f a schr\u00e1nek: u Klyticu jde o z\u00e1lohy samotn\u00fdch slu\u017eeb, popsan\u00e9 na str\u00e1nce <a href='\/cs\/bezpecnost-a-zalohovani\/'>bezpe\u010dnost a z\u00e1lohov\u00e1n\u00ed<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7f80712 kly-g-sources elementor-widget elementor-widget-text-editor\" data-id=\"7f80712\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>Zdroje<\/h2><p>Ov\u011b\u0159eno v \u0159\u00edjnu 2026.<\/p><ul><li>Cybermalveillance.gouv.fr, \u201eRan\u00e7ongiciel ou ransomware : que faire si votre organisation est victime d\u2019une attaque ?\u201c (Ransomware: co d\u011blat, pokud se va\u0161e organizace stane ob\u011bt\u00ed \u00fatoku): definice, zp\u016fsoby pr\u016fniku (zranitelnosti, vzd\u00e1len\u00e9 p\u0159\u00edstupy, phishing, \u0161kodliv\u00fd program), odpojen\u00e9 a otestovan\u00e9 z\u00e1lohy, aktualizace, neplatit. <a href='https:\/\/www.cybermalveillance.gouv.fr\/tous-nos-contenus\/fiches-reflexes\/rancongiciels-ransomwares' rel='noopener' target='_blank'>cybermalveillance.gouv.fr<\/a><\/li><li>Cybermalveillance.gouv.fr, \u201eQue faire en cas de phishing ou hame\u00e7onnage ?\u201c (Co d\u011blat v p\u0159\u00edpad\u011b phishingu): p\u0159ed zad\u00e1n\u00edm \u00fadaj\u016f ov\u011b\u0159it adresu odkazu a webu. <a href='https:\/\/www.cybermalveillance.gouv.fr\/tous-nos-contenus\/fiches-reflexes\/hameconnage-phishing' rel='noopener' target='_blank'>cybermalveillance.gouv.fr<\/a><\/li><li>Klytic, str\u00e1nka Klytic MTA: anal\u00fdzy p\u0159\u00edloh a odkaz\u016f v nab\u00eddk\u00e1ch Essential a Advanced, dopl\u0148ky, zp\u016fsoby nasazen\u00ed, spu\u0161t\u011bn\u00ed zm\u011bnou MX. <a href='https:\/\/www.klytic.com\/klytic-mta\/' rel='noopener' target='_blank'>klytic.com<\/a><\/li><li>ANSSI, \u201eGuide d\u2019hygi\u00e8ne informatique\u201c, verze 2.0, z\u00e1\u0159\u00ed 2017, opat\u0159en\u00ed 24 \u201eProt\u00e9ger sa messagerie professionnelle\u201c (Chra\u0148te sv\u016fj firemn\u00ed e-mail): \u201eE-mail je hlavn\u00edm vektorem infekce pracovn\u00edch stanic.\u201c <a href='https:\/\/messervices.cyber.gouv.fr\/documents-guides\/guide_hygiene_informatique_anssi.pdf' rel='noopener' target='_blank'>messervices.cyber.gouv.fr<\/a><\/li><li>ANSSI, MonServiceS\u00e9curis\u00e9, katalog opat\u0159en\u00ed, opat\u0159en\u00ed \u201eMettre en \u0153uvre une solution d\u2019anti-spam et d\u2019anti-hame\u00e7onnage\u201c (Nasa\u010fte antispamov\u00e9 a anti-phishingov\u00e9 \u0159e\u0161en\u00ed): \u201eE-mailov\u00e9 syst\u00e9my jsou jedn\u00edm z hlavn\u00edch vektor\u016f \u00fatok\u016f, proto\u017ee jsou velmi \u0161iroce pou\u017e\u00edv\u00e1ny a vystaveny internetu.\u201c (p\u0159eklad) <a href='https:\/\/monservicesecurise.cyber.gouv.fr\/referentiel-mesures' rel='noopener' target='_blank'>monservicesecurise.cyber.gouv.fr<\/a><\/li><li>ANSSI, \u201eRecommandations relatives \u00e0 l\u2019interconnexion d\u2019un syst\u00e8me d\u2019information \u00e0 Internet\u201c (Doporu\u010den\u00ed k propojen\u00ed informa\u010dn\u00edho syst\u00e9mu s internetem), ANSSI-PA-066, verze 3.0, 19. \u010dervna 2020, kapitola 5 \u201eS\u00e9curisation du service de messagerie \u00e9lectronique\u201c (Zabezpe\u010den\u00ed e-mailov\u00e9 slu\u017eby): e-mail se \u201estal jedn\u00edm z hlavn\u00edch vektor\u016f kybernetick\u00fdch \u00fatok\u016f\u201c (p\u0159eklad) (phishing, \u0161kodliv\u00e9 p\u0159\u00edlohy); \u00a7 5.2.3: antispamov\u00e9 mechanismy a mechanismy vyhled\u00e1v\u00e1n\u00ed \u0161kodliv\u00e9ho obsahu \u201emus\u00ed b\u00fdt zavedeny\u201c. <a href='https:\/\/messervices.cyber.gouv.fr\/guides\/recommandations-relatives-linterconnexion-dun-si-internet' rel='noopener' target='_blank'>messervices.cyber.gouv.fr<\/a><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3a668d3 e-con-full kly-g-aside e-flex e-con e-parent\" data-id=\"3a668d3\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fc852a6 elementor-widget elementor-widget-html\" data-id=\"fc852a6\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"html.default\">\n\t\t\t\t\t<nav class=\"kly-g-toc\" aria-label=\"Na t\u00e9to str\u00e1nce\"><p>Na t\u00e9to str\u00e1nce<\/p><ol><\/ol><\/nav>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7e7b5ad elementor-widget elementor-widget-text-editor\" data-id=\"7e7b5ad\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"kly-g-cta\"><h3>Zastavte nebezpe\u010dn\u00e9 p\u0159\u00edlohy p\u0159ed schr\u00e1nkou<\/h3><p>Zku\u0161ebn\u00ed verze Klytic MTA zdarma na 30 dn\u00ed, p\u0159ed va\u0161\u00edm st\u00e1vaj\u00edc\u00edm e-mailov\u00fdm syst\u00e9mem.<\/p><p><a class=\"kly-g-btn\" href=\"\/cs\/zkusebni-verze-zdarma-na-30-dni\/\">Vyzkou\u0161et Klytic MTA \u2192<\/a><\/p><p style=\"margin:0\"><a class=\"kly-g-btn ghost\" href=\"\/cs\/klytic-mta\/\">Porovnat Essential a Advanced<\/a><\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e00aff4 e-con-full kly-g-related e-flex e-con e-parent\" data-id=\"e00aff4\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6e27678 elementor-widget elementor-widget-text-editor\" data-id=\"6e27678\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h2>P\u0159e\u010dt\u011bte si tak\u00e9<\/h2><div class=\"kly-g-grid\"><a class=\"kly-g-card\" href=\"\/cs\/spam-phishing-malware-kompromitovany-ucet\/\" style=\"--cat:#dc2626\"><span class=\"c\">Pochopit \u00b7 Zabezpe\u010den\u00ed e-mail\u016f<\/span><span class=\"t\">Spam, phishing, malware a kompromitovan\u00fd \u00fa\u010det<\/span><span class=\"q\">\u010cty\u0159i hrozby p\u0159ich\u00e1zej\u00ed stejn\u00fdmi dve\u0159mi a ne\u0159e\u0161\u00ed se stejn\u011b. Co ka\u017edou z nich prozrad\u00ed, co ji zastav\u00ed a pro\u010d samotn\u00fd antispam u\u017e nesta\u010d\u00ed.<\/span><span class=\"m\"><span>6 min \u010dten\u00ed<\/span><b>\u010c\u00edst \u2192<\/b><\/span><\/a><a class=\"kly-g-card\" href=\"\/cs\/karantena-falesne-poplachy\/\" style=\"--cat:#dc2626\"><span class=\"c\">Pou\u017e\u00edvat \u00b7 Zabezpe\u010den\u00ed e-mail\u016f<\/span><span class=\"t\">Karant\u00e9na, fale\u0161n\u00e9 poplachy a hl\u00e1\u0161en\u00ed<\/span><span class=\"q\">Co se stane se zpr\u00e1vou zadr\u017eenou Klytic MTA, jak ji uvolnit, opravit fale\u0161n\u00fd poplach a nahl\u00e1sit \u0161kodlivou zpr\u00e1vu.<\/span><span class=\"m\"><span>6 min \u010dten\u00ed<\/span><b>\u010c\u00edst \u2192<\/b><\/span><\/a><a class=\"kly-g-card\" href=\"\/cs\/dms-ransomware-obnova\/\" style=\"--cat:#0d9488\"><span class=\"c\">Pochopit \u00b7 Dokumenty a spr\u00e1va dokument\u016f (DMS)<\/span><span class=\"t\">Ochrana syst\u00e9mu spr\u00e1vy dokument\u016f p\u0159ed ransomwarem a jeho obnova<\/span><span class=\"q\">Pr\u00e1va, kter\u00e1 omez\u00ed, co m\u016f\u017ee \u00fato\u010dn\u00edk za\u0161ifrovat, z\u00e1loha mimo jeho dosah a po\u0159ad\u00ed obnovy, kter\u00e9 nez\u00e1vis\u00ed na jednom tla\u010d\u00edtku.<\/span><span class=\"m\"><span>7 min \u010dten\u00ed<\/span><b>\u010c\u00edst \u2192<\/b><\/span><\/a><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-539316dd e-con e-atomic-element e-div-block-base e-default-div e-c9fd865-4a50 \" data-id=\"539316dd\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"539316dd\" data-e-type=\"e-div-block\" data-id=\"539316dd\">\n    <div class=\"elementor-element elementor-element-4f79afcb e-con e-atomic-element e-div-block-base e-default-div e-4fa9fe-ce86 \" data-id=\"4f79afcb\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"4f79afcb\" data-e-type=\"e-div-block\" data-id=\"4f79afcb\">\n    \t\t\t<p class=\"e-4dcf5c70-2ec7 e-paragraph-base e-default-p\" data-interaction-id=\"330a7a35\" data-e-type=\"widget\" data-id=\"330a7a35\">Uv\u00edtac\u00ed nab\u00eddka<\/p>\n\t\t\t\t\t<h2 data-interaction-id=\"56f1f7d5\" class=\"e-347faa43-4e20 e-heading-base e-default-h2\" data-e-type=\"widget\" data-id=\"56f1f7d5\">30 dn\u00ed zku\u0161ebn\u00ed verze zdarma a migrace s asistenc\u00ed<\/h2>\n\t\t\t\t\t<p class=\"e-7f6310da-1caa e-paragraph-base e-default-p\" data-interaction-id=\"2ce27288\" data-e-type=\"widget\" data-id=\"2ce27288\">Zku\u0161ebn\u00ed nab\u00eddka bez z\u00e1vazk\u016f. N\u00e1\u0161 poradce v\u00e1m zavol\u00e1, aby poznal va\u0161e pot\u0159eby a p\u0159ipravil va\u0161e prost\u0159ed\u00ed Klytic.<\/p>\n\t\t<div class=\"elementor-element elementor-element-35ea29a1 e-con e-atomic-element e-div-block-base e-default-div e-1cd48b22-e6da \" data-id=\"35ea29a1\" data-element_type=\"e-div-block\" data-e-type=\"e-div-block\" data-interaction-id=\"35ea29a1\" data-e-type=\"e-div-block\" data-id=\"35ea29a1\">\n    \t\t\t<a href=\"\/essai-gratuit\/\" target=\"_self\" class=\"e-4a7886e3-652d e-button-base e-default-a\" data-interaction-id=\"19bfa8f1\" data-e-type=\"widget\" data-id=\"19bfa8f1\">\n\t\ud83d\ude80 Zah\u00e1jit zku\u0161ebn\u00ed verzi zdarma\n<\/a>\n\t\t\t\t\t<a href=\"\/tarifs\/\" target=\"_self\" class=\"e-137e863d-dd0d e-button-base e-default-a\" data-interaction-id=\"326d82ab\" data-e-type=\"widget\" data-id=\"326d82ab\">\n\tZobrazit cen\u00edk\n<\/a>\n\t\t\n<\/div>\n\n<\/div>\n\n<\/div>\n\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"_seopress_titles_title":"P\u0159\u00edlohy, odkazy a ransomware v e-mailu | Klytic","_seopress_titles_desc":"Anal\u00fdza p\u0159\u00edloh (makra, PDF, HTML, QR k\u00f3dy) a odkaz\u016f, ochrana p\u0159i kliknut\u00ed a meze filtru v boji s ransomwarem.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"P\u0159\u00edlohy, odkazy a ransomware v e-mailu | Klytic","_seopress_social_fb_desc":"Anal\u00fdza p\u0159\u00edloh (makra, PDF, HTML, QR k\u00f3dy) a odkaz\u016f, ochrana p\u0159i kliknut\u00ed a meze filtru v boji s ransomwarem.","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"P\u0159\u00edlohy, odkazy a ransomware v e-mailu | Klytic","_seopress_social_twitter_desc":"Anal\u00fdza p\u0159\u00edloh (makra, PDF, HTML, QR k\u00f3dy) a odkaz\u016f, ochrana p\u0159i kliknut\u00ed a meze filtru v boji s ransomwarem.","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"footnotes":""},"class_list":["post-7463","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/pages\/7463","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/comments?post=7463"}],"version-history":[{"count":0,"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/pages\/7463\/revisions"}],"wp:attachment":[{"href":"https:\/\/eu.klytic.com\/cs\/wp-json\/wp\/v2\/media?parent=7463"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}