{"id":13942,"date":"2024-06-07T14:10:24","date_gmt":"2024-06-07T14:10:24","guid":{"rendered":"https:\/\/tech-lib.eu\/tech\/?p=13942"},"modified":"2024-06-07T14:10:24","modified_gmt":"2024-06-07T14:10:24","slug":"jak-bezpecne-je-vase-heslo","status":"publish","type":"post","link":"https:\/\/tech-lib.eu\/tech\/jak-bezpecne-je-vase-heslo\/","title":{"rendered":"Jak bezpe\u010dn\u00e9 je va\u0161e heslo?"},"content":{"rendered":"
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Jak\u00e9 heslo je bezpe\u010dn\u00e9?<\/div>\n
Siln\u00e9 heslo by m\u011blo obsahovat alespo\u0148 16 znak\u016f, a to v\u010detn\u011b mal\u00fdch a velk\u00fdch p\u00edsmen, \u010d\u00edslic a speci\u00e1ln\u00edch znak\u016f, jako je poml\u010dka, hashtag, otazn\u00edk, a dal\u0161\u00ed, aby se nedalo snadno uhodnout. Svoje heslo si nikdy neukl\u00e1dej do prohl\u00ed\u017ee\u010de, i kdyby t\u011b k tomu vyz\u00fdval. Sv\u00e9 heslo by sis m\u011bl\/a v\u017edy pamatovat s\u00e1m\/sama.<\/div>\n
\n\t\t\t\t\t Dal\u0161\u00ed informace najdete na<\/span> www.avast.com<\/a>\n\t\t\t\t<\/div>\n<\/p><\/div>\n
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Bezpe\u010dnost na\u0161ich hesel se v dne\u0161n\u00ed digit\u00e1ln\u00ed dob\u011b stala hlavn\u00edm probl\u00e9mem, proto\u017ee osobn\u00ed \u00fadaje jsou ukl\u00e1d\u00e1ny online a kybernetick\u00e9 nebezpe\u010d\u00ed roste. Abychom zabr\u00e1nili neopr\u00e1vn\u011bn\u00e9mu p\u0159\u00edstupu k na\u0161im citliv\u00fdm \u00fadaj\u016fm, je nezbytn\u00e9 m\u00edt siln\u00e1 hesla. Jak bezpe\u010dn\u00e9 je v\u0161ak va\u0161e heslo? Pod\u00edvejme se na tento dotaz podrobn\u011bji a na souvisej\u00edc\u00ed ot\u00e1zky, jako jsou m\u011b\u0159i\u010de s\u00edly hesla, n\u00e1stroje pro kontrolu s\u00edly hesla, \u0161patn\u00e1 hesla a mo\u017enost hacker\u016f p\u0159e\u010d\u00edst va\u0161e heslo. <\/p>\n

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Pou\u017e\u00edv\u00e1n\u00ed m\u011b\u0159i\u010d\u016f s\u00edly hesla se roz\u0161\u00ed\u0159ilo na mnoha webov\u00fdch str\u00e1nk\u00e1ch. Tyto n\u00e1stroje vyhodnocuj\u00ed s\u00edlu hesla na z\u00e1klad\u011b \u0159ady krit\u00e9ri\u00ed, v\u010detn\u011b jeho d\u00e9lky, slo\u017eitosti a r\u016fznorodosti znak\u016f. Je d\u016fle\u017eit\u00e9 si uv\u011bdomit, \u017ee a\u010dkoli v\u00e1m mohou poskytnout z\u00e1kladn\u00ed informaci o tom, jak siln\u00e9 je va\u0161e heslo, nejsou neomyln\u00e9. Tato m\u011b\u0159idla jsou m\u00e9n\u011b \u00fa\u010dinn\u00e1, proto\u017ee hacke\u0159i mohou hesla prolomit pomoc\u00ed pokro\u010dil\u00fdch metod. <\/p>\n

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Na druhou stranu, n\u00e1stroj pro kontrolu s\u00edly hesla je program, kter\u00fd vyhodnocuje s\u00edlu va\u0161eho hesla pomoc\u00ed simulace r\u016fzn\u00fdch hackersk\u00fdch taktik. Tyto kontrol\u00e9ry na rozd\u00edl od m\u011b\u0159i\u010d\u016f s\u00edly hesla berou v \u00favahu sofistikovan\u011bj\u0161\u00ed hackersk\u00e9 techniky, jako jsou \u00fatoky hrubou silou a slovn\u00edkov\u00e9 \u00fatoky. Nab\u00edzej\u00ed p\u0159esn\u011bj\u0161\u00ed vyhodnocen\u00ed bezpe\u010dnosti va\u0161eho hesla. Je d\u016fle\u017eit\u00e9 m\u00edt na pam\u011bti, \u017ee \u017e\u00e1dn\u00e9 heslo nen\u00ed nikdy stoprocentn\u011b bezpe\u010dn\u00e9, a proto se doporu\u010duje \u010dast\u00e1 \u00faprava hesel. <\/p>\n

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Chcete-li dos\u00e1hnout co nejvy\u0161\u0161\u00ed \u00farovn\u011b zabezpe\u010den\u00ed, m\u011bli byste se p\u0159i v\u00fdb\u011bru hesel vyvarovat n\u011bkter\u00fdch mo\u017enost\u00ed. \u010castou chybou je pou\u017e\u00edv\u00e1n\u00ed zjevn\u00fdch hesel, jako je „heslo“ nebo „123456“, a tak\u00e9 pou\u017e\u00edv\u00e1n\u00ed soukrom\u00fdch informac\u00ed, jako je va\u0161e jm\u00e9no, datum narozen\u00ed nebo adresa. Pou\u017e\u00edv\u00e1n\u00ed stejn\u00e9ho hesla pro mnoho \u00fa\u010dt\u016f zvy\u0161uje nebezpe\u010d\u00ed naru\u0161en\u00ed bezpe\u010dnosti. Doporu\u010duje se vym\u00fd\u0161let origin\u00e1ln\u00ed, n\u00e1ro\u010dn\u00e1 hesla s kombinac\u00ed velk\u00fdch a mal\u00fdch p\u00edsmen, \u010d\u00edslic a speci\u00e1ln\u00edch znak\u016f. <\/p>\n

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Mohou hacke\u0159i v sou\u010dasn\u00e9 dob\u011b vid\u011bt va\u0161e heslo? Rychl\u00e1 odpov\u011b\u010f zn\u00ed ne. Webov\u00e9 str\u00e1nky a online slu\u017eby v\u011bt\u0161inou uchov\u00e1vaj\u00ed pouze zaheslovanou verzi va\u0161eho hesla, nikoliv samotn\u00e9 heslo. Pomoc\u00ed matematick\u00e9ho postupu transformuje hashov\u00e1n\u00ed va\u0161e heslo do odli\u0161n\u00e9ho \u0159et\u011bzce znak\u016f. Webov\u00e1 str\u00e1nka p\u0159i zad\u00e1v\u00e1n\u00ed hesla provede jeho hashov\u00e1n\u00ed a porovn\u00e1 ho s d\u0159\u00edve ulo\u017een\u00fdm hashem. Pokud se shoduj\u00ed, z\u00edsk\u00e1te p\u0159\u00edstup. D\u00edky t\u00e9to technice, i kdy\u017e se hackerovi poda\u0159\u00ed z\u00edskat uchov\u00e1van\u00e1 hesla, nebude m\u00edt p\u0159\u00edstup k p\u016fvodn\u00edmu heslu. <\/p>\n

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Je v\u0161ak d\u016fle\u017eit\u00e9 si uv\u011bdomit, \u017ee hacke\u0159i mohou zachytit hesla p\u0159ed jejich zaheslov\u00e1n\u00edm pomoc\u00ed \u0159ady metod. Mezi tyto metody pat\u0159\u00ed nap\u0159\u00edklad keylogging, phishing a \u00fatoky typu man-in-the-middle. Abyste t\u011bmto \u00fatok\u016fm p\u0159ede\u0161li, je nutn\u00e9 dodr\u017eovat z\u00e1sady bezpe\u010dn\u00e9ho prohl\u00ed\u017een\u00ed, nav\u0161t\u011bvovat d\u016fv\u011bryhodn\u00e9 webov\u00e9 str\u00e1nky a db\u00e1t zv\u00fd\u0161en\u00e9 opatrnosti p\u0159i klik\u00e1n\u00ed na pochybn\u00e9 e-maily nebo odkazy. <\/p>\n

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Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee bezpe\u010dnost hesla ovliv\u0148uje \u0159ada prom\u011bnn\u00fdch, nap\u0159\u00edklad jeho s\u00edla, jedine\u010dnost a chov\u00e1n\u00ed na internetu. P\u0159esto\u017ee mohou nab\u00eddnout ur\u010ditou pomoc, m\u011b\u0159i\u010de s\u00edly hesla a n\u00e1stroje pro jeho kontrolu nejsou dokonal\u00e9. Vytv\u00e1\u0159ejte bezpe\u010dn\u00e1 a slo\u017eit\u00e1 hesla, vyh\u00fdbejte se b\u011b\u017en\u00fdm n\u00e1strah\u00e1m a \u010dasto je aktualizujte. A\u010dkoli \u017e\u00e1dn\u00e9 heslo nen\u00ed stoprocentn\u011b bezpe\u010dn\u00e9, dodr\u017eov\u00e1n\u00edm osv\u011bd\u010den\u00fdch postup\u016f a zv\u00fd\u0161enou pozornost\u00ed m\u016f\u017eete v\u00fdrazn\u011b zlep\u0161it zabezpe\u010den\u00ed a ochr\u00e1nit sv\u00e1 d\u016fle\u017eit\u00e1 data p\u0159ed neopr\u00e1vn\u011bn\u00fdm p\u0159\u00edstupem.<\/p><\/div>\n

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FAQ<\/div>\n
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Mohou hacke\u0159i prolomit siln\u00e9 heslo?<\/div>\n

A\u010dkoli \u017e\u00e1dn\u00e9 heslo nen\u00ed zcela odoln\u00e9 v\u016f\u010di hacker\u016fm, siln\u00e1 hesla je mnohem obt\u00ed\u017en\u011bj\u0161\u00ed prolomit ne\u017e hesla slab\u00e1. \u00datoky hrubou silou a slovn\u00edkov\u00e9 \u00fatoky jsou dv\u011b hlavn\u00ed strategie, kter\u00e9 hacke\u0159i pou\u017e\u00edvaj\u00ed k de\u0161ifrov\u00e1n\u00ed hesel. <\/p>\n

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\u00datoky hrubou silou testuj\u00ed v\u0161echny mo\u017en\u00e9 kombinace znak\u016f, dokud neobjev\u00ed spr\u00e1vn\u00e9 heslo. Proto\u017ee v\u0161ak existuj\u00ed miliardy nebo dokonce biliony mo\u017en\u00fdch kombinac\u00ed siln\u00fdch hesel slo\u017een\u00fdch ze sm\u011bsi velk\u00fdch a mal\u00fdch p\u00edsmen, \u010d\u00edslic a speci\u00e1ln\u00edch znak\u016f, jsou \u00fatoky hrubou silou velmi obt\u00ed\u017en\u00e9 a \u010dasov\u011b n\u00e1ro\u010dn\u00e9. Naproti tomu slovn\u00edkov\u00e9 \u00fatoky zahrnuj\u00ed zkou\u0161en\u00ed hesla pomoc\u00ed ji\u017e existuj\u00edc\u00edho seznamu \u010dasto pou\u017e\u00edvan\u00fdch v\u00fdraz\u016f a hesel. Slovn\u00edkov\u00e9 \u00fatoky jsou mnohem m\u00e9n\u011b \u00fa\u010dinn\u00e9 proti siln\u00fdm hesl\u016fm, kter\u00e1 neobsahuj\u00ed b\u011b\u017en\u00e1 slova nebo fr\u00e1ze. <\/p>\n

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Bezpe\u010dnost hesla m\u016f\u017eete v\u00fdrazn\u011b zv\u00fd\u0161it pou\u017eit\u00edm v\u00fdrazn\u00e9ho, dlouh\u00e9ho a slo\u017eit\u00e9ho hesla a zapnut\u00edm dvoufaktorov\u00e9ho ov\u011b\u0159ov\u00e1n\u00ed. Je tak\u00e9 nezbytn\u00e9 vyhnout se pou\u017e\u00edv\u00e1n\u00ed stejn\u00e9ho hesla pro n\u011bkolik r\u016fzn\u00fdch \u00fa\u010dt\u016f a hesla \u010dasto aktualizovat. A\u010dkoli \u017e\u00e1dn\u00e9 heslo nen\u00ed zcela nepr\u016fst\u0159eln\u00e9, dodr\u017eov\u00e1n\u00ed t\u011bchto z\u00e1kladn\u00edch postup\u016f \u010din\u00ed velmi nepravd\u011bpodobn\u00fdm, \u017ee by hacke\u0159i siln\u00e9 heslo rychle rozlu\u0161tili. <\/p>\n<\/div>\n

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Jak dlouho trv\u00e1 prolomen\u00ed hesla 2023?<\/div>\n

V roce 2023 bude v tom, jak dlouho bude prolomen\u00ed hesla trvat, hr\u00e1t roli slo\u017eitost hesla a v\u00fdpo\u010detn\u00ed v\u00fdkon, kter\u00fd m\u00e1 \u00fato\u010dn\u00edk k dispozici. P\u0159edpokl\u00e1d\u00e1 se v\u0161ak, \u017ee s rozvojem technologi\u00ed budou techniky prolamov\u00e1n\u00ed hesel st\u00e1le slo\u017eit\u011bj\u0161\u00ed, co\u017e m\u016f\u017ee zkr\u00e1tit dobu pot\u0159ebnou k prolomen\u00ed hesla. Pro zv\u00fd\u0161en\u00ed jejich bezpe\u010dnosti je nezbytn\u00e9 vyvinout siln\u00e1, jedine\u010dn\u00e1 hesla, kter\u00e1 kombinuj\u00ed velk\u00e1 a mal\u00e1 p\u00edsmena, \u010d\u00edslice a speci\u00e1ln\u00ed znaky. <\/p>\n<\/div>\n

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Jsou gener\u00e1tory hesel online bezpe\u010dn\u00e9?<\/div>\n

Bezpe\u010dnost pou\u017e\u00edv\u00e1n\u00ed online gener\u00e1toru hesel z\u00e1vis\u00ed na dan\u00e9m gener\u00e1toru a na bezpe\u010dnostn\u00edch opat\u0159en\u00edch, kter\u00e1 p\u0159ij\u00edm\u00e1. N\u011bkter\u00e9 d\u016fv\u011bryhodn\u00e9 online gener\u00e1tory hesel pou\u017e\u00edvaj\u00ed siln\u00e9 \u0161ifrovac\u00ed algoritmy k vytv\u00e1\u0159en\u00ed n\u00e1hodn\u00fdch a slo\u017eit\u00fdch hesel, kter\u00e1 je obt\u00ed\u017en\u00e9 uhodnout. Tyto gener\u00e1tory \u010dasto kladou velk\u00fd d\u016fraz na soukrom\u00ed u\u017eivatel\u016f t\u00edm, \u017ee neuchov\u00e1vaj\u00ed hesla ani jin\u00e9 soukrom\u00e9 \u00fadaje. <\/p>\n

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Je v\u0161ak nezbytn\u00e9 pou\u017e\u00edvat internetov\u00e9 gener\u00e1tory hesel obez\u0159etn\u011b. Ne v\u0161echny gener\u00e1tory jsou vyrobeny stejn\u011b a n\u011bkter\u00e9 nemus\u00ed b\u00fdt vybaveny dostate\u010dn\u00fdmi bezpe\u010dnostn\u00edmi opat\u0159en\u00edmi. Pou\u017e\u00edvejte n\u00e1vrhy respektovan\u00fdch web\u016f na zn\u00e1m\u00e9 a spolehliv\u00e9 gener\u00e1tory hesel. <\/p>\n

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Pro dal\u0161\u00ed zv\u00fd\u0161en\u00ed bezpe\u010dnosti va\u0161ich online \u00fa\u010dt\u016f se obecn\u011b doporu\u010duje pou\u017e\u00edvat kombinaci r\u016fzn\u00fdch bezpe\u010dnostn\u00edch opat\u0159en\u00ed, nap\u0159\u00edklad pou\u017e\u00edvat spr\u00e1vce hesel a zapnout dvoufaktorov\u00e9 ov\u011b\u0159ov\u00e1n\u00ed.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Jak\u00e9 heslo je bezpe\u010dn\u00e9? Siln\u00e9 heslo by m\u011blo obsahovat alespo\u0148 16 znak\u016f, a to v\u010detn\u011b mal\u00fdch a velk\u00fdch p\u00edsmen, \u010d\u00edslic a speci\u00e1ln\u00edch znak\u016f, jako je poml\u010dka, hashtag, otazn\u00edk, a dal\u0161\u00ed, aby se nedalo snadno uhodnout. Svoje heslo si nikdy neukl\u00e1dej do prohl\u00ed\u017ee\u010de, i kdyby t\u011b k tomu vyz\u00fdval. Sv\u00e9 heslo by sis m\u011bl\/a v\u017edy pamatovat … \u010c\u00edst d\u00e1l<\/a><\/p>\n","protected":false},"author":1262,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5231],"tags":[],"class_list":["post-13942","post","type-post","status-publish","format-standard","hentry","category-zabezpeceni-hesla"],"_links":{"self":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/13942","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/users\/1262"}],"replies":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/comments?post=13942"}],"version-history":[{"count":1,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/13942\/revisions"}],"predecessor-version":[{"id":15935,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/13942\/revisions\/15935"}],"wp:attachment":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/media?parent=13942"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/categories?post=13942"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/tags?post=13942"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}