{"id":560,"date":"2018-09-24T13:47:24","date_gmt":"2018-09-24T11:47:24","guid":{"rendered":"https:\/\/www.zaskolit.cz\/?p=560"},"modified":"2018-10-12T13:06:27","modified_gmt":"2018-10-12T11:06:27","slug":"5-malych-kroku-pro-cloveka-ale-velky-skok-pro-zabezpeceni-uctu","status":"publish","type":"post","link":"https:\/\/www.digitalnisebeobrana.cz\/en\/5-malych-kroku-pro-cloveka-ale-velky-skok-pro-zabezpeceni-uctu\/","title":{"rendered":"5 mal\u00fdch krok\u016f pro \u010dlov\u011bka, ale velk\u00fd skok pro zabezpe\u010den\u00ed \u00fa\u010dtu"},"content":{"rendered":"<h3 id=\"jen-heslo-nesta\u010d\u00ed\"><span class=\"ez-toc-section\" id=\"Jen_heslo_nestaci\"><\/span><img loading=\"lazy\" decoding=\"async\" class=\"alignright  wp-image-810\" src=\"https:\/\/www.zaskolit.cz\/wp-content\/uploads\/2018\/09\/internet-1971623_640.jpg\" alt=\"\" width=\"508\" height=\"385\" srcset=\"https:\/\/www.digitalnisebeobrana.cz\/wp-content\/uploads\/2018\/09\/internet-1971623_640.jpg 640w, https:\/\/www.digitalnisebeobrana.cz\/wp-content\/uploads\/2018\/09\/internet-1971623_640-600x455.jpg 600w, https:\/\/www.digitalnisebeobrana.cz\/wp-content\/uploads\/2018\/09\/internet-1971623_640-300x227.jpg 300w\" sizes=\"auto, (max-width: 508px) 100vw, 508px\" \/>Jen heslo nesta\u010d\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Siln\u00e9 heslo je z\u00e1kladn\u00edm prvkem zabezpe\u010den\u00ed pro va\u0161e za\u0159\u00edzen\u00ed a \u00fa\u010dty. Pokud v\u0161ak unikne (a\u0165 u\u017e z va\u0161eho za\u0159\u00edzen\u00ed nebo serveru slu\u017eby, kde jste zaregistrov\u00e1ni) a dostane do rukou \u00fato\u010dn\u00edk\u016f, obvykle jim u\u017e nic nebr\u00e1n\u00ed z\u00edskat absolutn\u00ed kontrolu nad va\u0161emi \u00fa\u010dty. Mohou va\u0161\u00edm jm\u00e9nem pos\u00edlat emaily, nakupovat na eshopech za va\u0161e pen\u00edze, nebo zve\u0159ejnit \u010di zpen\u011b\u017eit va\u0161e soukrom\u00e9 dokumenty, fotografie apod. A sta\u010d\u00ed jim k tomu z\u00edskat jedno jedin\u00e9 heslo, t\u0159eba ze \u0161patn\u011b zabezpe\u010den\u00e9ho eshopu nebo z n\u011bjak\u00e9 star\u0161\u00ed slu\u017eby (bazaru, seznamky, diskuzn\u00edho f\u00f3ra&#8230;), kde jste se p\u0159ed lety zaregistrovali a kter\u00e1 nen\u00ed aktualizovan\u00e1 a obsahuje mno\u017estv\u00ed bezpe\u010dnostn\u00edch chyb. <strong>Velk\u00e1 v\u011bt\u0161ina u\u017eivatel\u016f toti\u017e pou\u017e\u00edv\u00e1 jedno heslo pro v\u0161echny \u00fa\u010dty<\/strong>. Stejn\u00fdm heslem se tak p\u0159ihla\u0161uje p\u0159i n\u00e1kupu elektroniky v Alze, k emailu na Seznamu a na Facebook. <strong>\u00dato\u010dn\u00edci to v\u011bd\u00ed<\/strong>, proto unikl\u00e9 heslo vyzkou\u0161\u00ed na v\u0161ech mo\u017en\u00fdch slu\u017eb\u00e1ch. Jak zabr\u00e1nit tomu, aby heslo, kter\u00e9 uniklo (a t\u0159eba ne va\u0161\u00ed vinou) nap\u0159. ze serveru pro sd\u00edlen\u00ed fotografi\u00ed, ohrozilo va\u0161e d\u00e1l\u0161\u00ed \u00fa\u010dty? Jedn\u00edm z \u0159e\u0161en\u00ed je m\u00edt pro ka\u017edou slu\u017ebu jin\u00e9 heslo (za pomoc\u00ed <a href=\"https:\/\/cs.wikipedia.org\/wiki\/Software_pro_spr%C3%A1vu_hesel\">spr\u00e1vce hesel<\/a>). T\u00edm sice p\u0159ijdete o data na dan\u00e9 slu\u017eb\u011b, va\u0161e dal\u0161\u00ed \u00fa\u010dty ale nejsou \u00fanikem ohro\u017eeny. Dal\u0161\u00ed mo\u017enost\u00ed je pou\u017e\u00edt pro p\u0159ihl\u00e1\u0161en\u00ed heslem n\u011bco dal\u0161\u00edho. Takzvan\u00e9 dvouf\u00e1zov\u00e9 p\u0159ihl\u00e1\u0161en\u00ed. Zn\u00e1te to pravd\u011bpodobn\u011b z va\u0161eho internetov\u00e9ho bankovnictv\u00ed. Zad\u00e1te p\u0159ihla\u0161ovac\u00ed jm\u00e9no, heslo a je\u0161t\u011b v\u00e1m p\u0159ijde na mobiln\u00ed telefon smska se \u010dty\u0159 (\u0161esti) m\u00edstn\u00fdm k\u00f3dem. Teprve po zad\u00e1n\u00ed tohoto k\u00f3du jste p\u0159ihl\u00e1\u0161eni do va\u0161\u00ed banky. I kdyby se \u00fato\u010dn\u00edk dostal k va\u0161emu heslu, <strong>pot\u0159ebuje k \u00fasp\u011b\u0161n\u00e9 operaci i v\u00e1\u0161 telefon<\/strong>. Co\u017e \u00fatok velmi v\u00fdrazn\u011b komplikuje. Podobn\u011b v\u00fdb\u011bry z bankomat\u016f &#8211; m\u00e1te kartu a zn\u00e1te pin. Jedno bez druh\u00e9ho nefunguje (pouze p\u0159i placen\u00ed na termin\u00e1lu do ur\u010dit\u00e9 v\u00fd\u0161e je pot\u0159eba pouze karta, pin se nezad\u00e1v\u00e1 &#8211; zabezpe\u010den\u00ed je ni\u017e\u0161\u00ed).<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Zpusoby_prihlasovani\"><\/span>Zp\u016fsoby p\u0159ihla\u0161ov\u00e1n\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Pro p\u0159ihl\u00e1\u0161en\u00ed k \u00fa\u010d\u00fam \u010di za\u0159\u00edzen\u00edm se pou\u017e\u00edvaj\u00ed t\u0159i z\u00e1kladn\u00ed zp\u016fsoby ov\u011b\u0159en\u00ed:<\/p>\n<ul>\n<li>N\u011bco v\u00edm<\/li>\n<li>N\u011bco jsem<\/li>\n<li>N\u011bco m\u00e1m<\/li>\n<\/ul>\n<h4 id=\"n\u011bco-v\u00edm\"><span class=\"ez-toc-section\" id=\"Neco_vim\"><\/span>N\u011bco v\u00edm<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Z\u00e1kladn\u00ed zp\u016fsob ov\u011b\u0159en\u00ed v po\u010d\u00edta\u010dov\u00e9m sv\u011bt\u011b. Zn\u00e1m p\u0159ihla\u0161ovac\u00ed jm\u00e9no a zn\u00e1m heslo, m\u016f\u017eu se pomoc\u00ed nich p\u0159ihla\u0161ovat k \u00fa\u010dt\u016fm \u010di za\u0159\u00edzen\u00edm.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Neco_jsem\"><\/span>N\u011bco jsem<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Takzvan\u00e9 biometrick\u00e9 \u00fadaje. Modern\u00ed technika um\u00ed rozpoznat v\u00e1\u0161 obli\u010dej nebo otisk prstu. Nemus\u00edte si nic pamatovat, prost\u011b p\u0159ilo\u017e\u00edte prst ke \u010dte\u010dce a za\u0159\u00edzen\u00ed je odem\u010deno.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Neco_mam\"><\/span>N\u011bco m\u00e1m<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Nej\u010dast\u011bj\u0161\u00ed zp\u016fsob ov\u011b\u0159en\u00ed v re\u00e1ln\u00e9m sv\u011bt\u011b. M\u00e1me kl\u00ed\u010d od sv\u00e9ho bytu, magnetickou kartu pro p\u0159\u00edstup do kancel\u00e1\u0159e. Ve sv\u011bt\u011b v\u00fdpo\u010detn\u00ed techniky m\u00e1te sv\u00e9 telefonn\u00ed \u010d\u00edslo, USB kl\u00ed\u010d nebo op\u011bt kartu.<\/p>\n<p>Jednotliv\u00e9 zp\u016fsoby ov\u011b\u0159en\u00ed maj\u00ed sv\u00e9 siln\u011bj\u0161\u00ed i slab\u0161\u00ed str\u00e1nky. Heslo si m\u016f\u017eete pamatovat a do hlavy v\u00e1m (zat\u00edm) nikdo nevid\u00ed. M\u016f\u017ee v\u0161ak uniknout nebo je slab\u00e9 a p\u0159edv\u00eddateln\u00e9. Obli\u010dej nebo otisk prstu je jedine\u010dn\u00fd, av\u0161ak d\u00e1 se napodobit a nejde zm\u011bnit. Kl\u00ed\u010d, kartu nebo telefon mohu m\u00edt neust\u00e1le u sebe, ale z\u00e1rove\u0148 je mohu ztratit a nebo je \u00fato\u010dn\u00edk m\u016f\u017ee zkop\u00edrovat \u010di zfal\u0161ovat (to jde i u telefonn\u00edho \u010d\u00edsla). Pokud v\u0161ak zkombinujete dv\u011b (a v\u00edce) t\u011bchto zp\u016fsob\u016f p\u0159ihl\u00e1\u0161en\u00ed, exponenci\u00e1ln\u011b zv\u00fd\u0161\u00edte \u00farove\u0148 zabezpe\u010den\u00ed va\u0161ich \u00fa\u010dt\u016f. A nen\u00ed to zase tak t\u011b\u017ek\u00e9.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Telefon_jako_zavora_na_dverich\"><\/span>Telefon jako z\u00e1vora na dve\u0159\u00edch<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Asi nejjednodu\u0161\u0161\u00ed cestou, jak zabezpe\u010dit svoje \u00fa\u010dty dvouf\u00e1zovou autentifikac\u00ed (2FA) je pou\u017eit\u00ed va\u0161eho mobiln\u00edho telefonu. Stejn\u00e9 zabezpe\u010den\u00ed, kter\u00e9 pou\u017e\u00edv\u00e1te pro p\u0159ihl\u00e1\u0161en\u00ed do va\u0161eho internetov\u00e9ho bankovnictv\u00ed m\u016f\u017eete pou\u017e\u00edt u velk\u00e9 v\u011bt\u0161iny online slu\u017eeb (email, soci\u00e1ln\u00ed s\u00edt\u011b, eshopy). Postup je v\u011bt\u0161inou n\u00e1sleduj\u00edc\u00ed:<\/p>\n<ol>\n<li>V nastaven\u00ed \u00fa\u010dtu najd\u011bte polo\u017eku pro v\u00edcef\u00e1zov\u00e9 ov\u011b\u0159en\u00ed. M\u016f\u017ee se jmenovat i &#8220;v\u00edcef\u00e1zov\u00e9&#8221;, &#8220;2FA&#8221;, &#8220;MFA&#8221; (Multi-factor authentication) apod. Toto nastaven\u00ed povolte.<\/li>\n<li>Vyberte mo\u017enost pro p\u0159ihl\u00e1\u0161en\u00ed telefonem (zasl\u00e1n\u00ed jednor\u00e1zov\u00fdch hesle pomoc\u00ed sms).<\/li>\n<li>Zadejte sv\u00e9 telefonn\u00ed \u010d\u00edslo v mezin\u00e1rodn\u00edm form\u00e1tu (+420xxxxxxxxx).<\/li>\n<li>Na telefon v\u00e1m p\u0159ijde jednor\u00e1zov\u00e9 heslo (v\u011bt\u0161inou \u010dty\u0159 nebo \u0161estim\u00edstn\u00e9 \u010d\u00edslo).<\/li>\n<li>Toto heslo zadejte do p\u0159\u00edslu\u0161n\u00e9ho pol\u00ed\u010dka ve va\u0161em \u00fa\u010dtu.<\/li>\n<\/ol>\n<p>A to je v\u0161e. P\u0159ihla\u0161ov\u00e1n\u00ed k va\u0161emu \u00fa\u010dtu bude od te\u010f sice o n\u011bco m\u00e1lo slo\u017eit\u011bj\u0161\u00ed (krom\u011b zad\u00e1n\u00ed p\u0159ihla\u0161ovac\u00edho jm\u00e9na a hesla mus\u00edte je\u0161t\u011b opsat \u010d\u00edslo z smsky), ale pro \u00fato\u010dn\u00edka se stal hradem s opevn\u011bn\u00edm. Mus\u00ed nyn\u00ed vynalo\u017eit v\u00fdrazn\u011b v\u00edce usil\u00ed k tomu, aby se k \u00fa\u010dtu dostal. A v\u011bt\u0161inou se stane prost\u011b to, \u017ee si najde jinou ob\u011b\u0165, kde to bude m\u00edt sna\u017e\u0161\u00ed.<\/p>\n<h3 id=\"co-kdy\u017e-ztrat\u00edm-telefon\"><span class=\"ez-toc-section\" id=\"Co_kdyz_ztratim_telefon\"><\/span>Co kdy\u017e ztrat\u00edm telefon?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Bez va\u0161eho telefonu se k \u00fa\u010dtu nep\u0159ihl\u00e1s\u00ed \u00fato\u010dn\u00edk, ale samoz\u0159ejm\u011b ani vy (pokud byste mohli vy, mohl by i \u00fato\u010dn\u00edk). P\u0159ij\u00edt o telefon nen\u00ed \u00fapln\u011b neobvykl\u00e9, proto je pot\u0159eba m\u00edt n\u011bjak\u00e1 &#8220;zadn\u00ed vr\u00e1tka&#8221;, jak se k \u00fa\u010dtu v tomto p\u0159\u00edpad\u011b dostat. Po zapnut\u00ed dvouf\u00e1zov\u00e9ho zabezpe\u010den\u00ed a registraci telefonn\u00edho \u010d\u00edsla v\u00e1m syst\u00e9m nab\u00eddne sadu (obvykle deseti) jednor\u00e1zov\u00fdch hesel pro p\u0159\u00edpad nedostupnosti telefonu. Jsou obvykle del\u0161\u00ed ne\u017e hesla, kter\u00e1 dostanete smskou a ka\u017ed\u00e9 lze pou\u017e\u00edt jen jednou. Tato \u010d\u00edsla si opi\u0161te a bezpe\u010dn\u011b ulo\u017ete. Pap\u00edr je vhodn\u011bj\u0161\u00ed ne\u017e ulo\u017een\u00ed v po\u010d\u00edta\u010di. Rozhodn\u011b si je nefo\u0165te telefonem. Pokud telefon ztrat\u00edte nebo v\u00e1m bude odcizen, p\u0159ijdete jak o mo\u017enost p\u0159ihl\u00e1\u0161en\u00ed pomoc\u00ed sms, tak i o z\u00e1lo\u017en\u00ed k\u00f3dy a k \u00fa\u010dtu se nebudete m\u00edt jak p\u0159ihl\u00e1sit. Pokud ztrat\u00edte telefon a nem\u00e1te zat\u00edm nov\u00fd, k \u00fa\u010dtu se p\u0159ihl\u00e1s\u00edte tak, \u017ee po v\u00fdzv\u011b k zad\u00e1n\u00ed jednor\u00e1zov\u00e9ho hesla vlo\u017ete jedno ze z\u00e1lo\u017en\u00edch (to si pak \u0161krtn\u011bte, ka\u017ed\u00e9 lze pou\u017e\u00edt jen jednou). Obvykle si s t\u011bmito z\u00e1lo\u017en\u00edmi k\u00f3dy vysta\u010d\u00edte do doby ne\u017e budete m\u00edt nov\u00fd telefon (pot\u00e9 lze vygenerovat novou sadu z\u00e1lo\u017en\u00edch hesel). Pokud v\u00e1m z\u00e1lo\u017en\u00ed k\u00f3dy nesta\u010d\u00ed (p\u0159ihla\u0161ujete se \u010dasto), v nastaven\u00ed \u00fa\u010dtu bu\u010f nastavte jin\u00e9 telefonn\u00ed \u010d\u00edslo (nap\u0159. slu\u017eebn\u00edho telefonu nebo \u010d\u00edslo d\u016fv\u011bryhodn\u00e9 osoby) nebo do\u010dasn\u011b vypn\u011bte dvouf\u00e1zov\u00e9 ov\u011b\u0159en\u00ed (to ale jen opravdu v nouzi a nezapome\u0148te ho pot\u00e9 znovu zapnout).<\/p>\n<h3 id=\"kde-v\u0161ude-zapnout-dvouf\u00e1zov\u00e9-ov\u011b\u0159en\u00ed\"><span class=\"ez-toc-section\" id=\"Kde_vsude_zapnout_dvoufazove_overeni\"><\/span>Kde v\u0161ude zapnout dvouf\u00e1zov\u00e9 ov\u011b\u0159en\u00ed?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Jednodu\u0161e v\u0161ude, kde to jde. Asi nejd\u016fle\u017eit\u011bj\u0161\u00ed je v\u00e1\u0161 email. Pou\u017e\u00edv\u00e1 se toti\u017e k obnovu hesla p\u0159i ztr\u00e1t\u011b. Pokud se \u00fato\u010dn\u00edk dostane do va\u0161eho emailu, m\u016f\u017ee zm\u011bnit hesla u va\u0161ich dal\u0161\u00edch \u00fa\u010dt\u016f p\u0159es tla\u010d\u00edtko &#8220;Zapomenut\u00e9 heslo&#8221;. V\u011bt\u0161ina velk\u00fdch poskytovatel\u016f emailu (Seznam, Gmail, Hotmail apod.) dvouf\u00e1zov\u00e9 zabezpe\u010den\u00ed umo\u017e\u0148uje. Pokud pou\u017e\u00edv\u00e1te n\u011bjakou emailovou slu\u017ebu, kde to mo\u017en\u00e9 nen\u00ed, zva\u017ete zm\u011bnu emailu nebo pi\u0161te na podporu, aby tuto slu\u017ebu zprovoznili.<\/p>\n<h3 id=\"n\u011bkolik-odkaz\u016f-na-zapnut\u00ed-dvouf\u00e1zov\u00e9ho-ov\u011b\u0159en\u00ed\"><span class=\"ez-toc-section\" id=\"Nekolik_odkazu_na_zapnuti_dvoufazoveho_overeni\"><\/span>N\u011bkolik odkaz\u016f na zapnut\u00ed dvouf\u00e1zov\u00e9ho ov\u011b\u0159en\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><a href=\"https:\/\/login.szn.cz\/tfa-promo\"><strong>Seznam<\/strong><\/a> &#8211; pouze p\u0159es aplikaci Seznamu, nelze jednodu\u0161e smskou<\/li>\n<li><a href=\"https:\/\/myaccount.google.com\/signinoptions\/two-step-verification\"><strong>Gmail<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/www.linkedin.com\/psettings\/two-step-verification\"><strong>LinkedIn<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/www.fb.com\/settings?tab=security&amp;section=two_fac_auth&amp;view\"><strong>Facebook<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/twitter.com\/settings\/account\/login_verification\"><strong>Twitter<\/strong><\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Jen heslo nesta\u010d\u00ed Siln\u00e9 heslo je z\u00e1kladn\u00edm prvkem zabezpe\u010den\u00ed pro va\u0161e za\u0159\u00edzen\u00ed a \u00fa\u010dty. Pokud v\u0161ak unikne (a\u0165 u\u017e z va\u0161eho za\u0159\u00edzen\u00ed nebo serveru slu\u017eby, kde jste zaregistrov\u00e1ni) a dostane do rukou \u00fato\u010dn\u00edk\u016f, obvykle jim u\u017e nic nebr\u00e1n\u00ed z\u00edskat absolutn\u00ed kontrolu nad va\u0161emi \u00fa\u010dty. Mohou va\u0161\u00edm jm\u00e9nem pos\u00edlat emaily, nakupovat na eshopech za va\u0161e pen\u00edze, &hellip;<br \/><a href=\"https:\/\/www.digitalnisebeobrana.cz\/en\/5-malych-kroku-pro-cloveka-ale-velky-skok-pro-zabezpeceni-uctu\/\" class=\"more-link pen_button pen_element_default pen_icon_arrow_double\">Continue reading <span class=\"screen-reader-text\">5 mal\u00fdch krok\u016f pro \u010dlov\u011bka, ale velk\u00fd skok pro zabezpe\u010den\u00ed \u00fa\u010dtu<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_vp_format_video_url":"","_vp_image_focal_point":[],"footnotes":""},"categories":[1],"tags":[],"class_list":["post-560","post","type-post","status-publish","format-standard","hentry","category-blog"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"en","enabled_languages":["cs","en"],"languages":{"cs":{"title":true,"content":true,"excerpt":false},"en":{"title":false,"content":false,"excerpt":false}}},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - 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