[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.telsey.cz\/jak-casto-menit-hesla\/#Article","mainEntityOfPage":"https:\/\/www.telsey.cz\/jak-casto-menit-hesla\/","headline":"Jak \u010dasto m\u011bnit hesla","name":"Jak \u010dasto m\u011bnit hesla","description":"Dne\u0161n\u00ed hacke\u0159i jsou na velmi vysok\u00e9 \u00farovni a hned tak n\u011bco je nezasko\u010d\u00ed. N\u011bkte\u0159\u00ed si jen hraj\u00ed, ale ti profesion\u00e1lov\u00e9 v\u011bt\u0161inou cht\u011bj\u00ed \u201cvybrab\u010dit\u201dva\u0161e konto. M\u00e1te-li hodn\u011b pen\u011bz a slab\u00e9 heslo, nav\u00edc zastaral\u00e9, t\u0159este se. Heslo se p\u0159ece m\u00e1 m\u011bnit minim\u00e1ln\u011b jednou t\u00fddn\u011b ne? Nu, tak tahle obehran\u00e1 p\u00edsni\u010dka ji\u017e nen\u00ed modern\u00ed a ji\u017e ani pravdiv\u00e1. […]","datePublished":"2019-09-04","dateModified":"2023-05-15","author":{"@type":"Person","@id":"https:\/\/www.telsey.cz\/author\/#Person","name":"","url":"https:\/\/www.telsey.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/383247cd769f7ac317a5bcda943ec48a3c79d996598ae4564ec21a0e178126d1?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/383247cd769f7ac317a5bcda943ec48a3c79d996598ae4564ec21a0e178126d1?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"telsey.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.telsey.cz\/wp-content\/uploads\/img_a344516_w2393_t1558358495.jpg","url":"https:\/\/www.telsey.cz\/wp-content\/uploads\/img_a344516_w2393_t1558358495.jpg","height":0,"width":0},"url":"https:\/\/www.telsey.cz\/jak-casto-menit-hesla\/","about":["Internet"],"wordCount":399,"articleBody":"Dne\u0161n\u00ed hacke\u0159i jsou na velmi vysok\u00e9 \u00farovni a hned tak n\u011bco je nezasko\u010d\u00ed. N\u011bkte\u0159\u00ed si jen hraj\u00ed, ale ti profesion\u00e1lov\u00e9 v\u011bt\u0161inou cht\u011bj\u00ed \u201cvybrab\u010dit\u201dva\u0161e konto. M\u00e1te-li hodn\u011b pen\u011bz a slab\u00e9 heslo, nav\u00edc zastaral\u00e9, t\u0159este se. Heslo se p\u0159ece m\u00e1 m\u011bnit minim\u00e1ln\u011b jednou t\u00fddn\u011b ne?Nu, tak tahle obehran\u00e1 p\u00edsni\u010dka ji\u017e nen\u00ed modern\u00ed a ji\u017e ani pravdiv\u00e1. Pro\u010d?Na to je jednoduch\u00e1 odpov\u011b\u010f. Pokud m\u00e1te na hesla program, ve velk\u00e9 v\u011bt\u0161in\u011b si to hl\u00edd\u00e1 s\u00e1m a vol\u00ed hesla, na kter\u00e9 ani \u010dert nep\u0159ijde. Mimo jin\u00e9ho programu ov\u0161em.Pokud \u0159e\u0161\u00edte dobu hesla ru\u010dn\u011b a sami tak nyn\u00ed hodn\u011b zpozorn\u011bte, proto\u017ee se dost\u00e1v\u00e1m k j\u00e1dru pudla.S\u00e1m velik\u00fd Microsoft toti\u017e vydal prohl\u00e1\u0161en\u00ed, ve kter\u00e9m v\u0161em sd\u011bluje, aby sv\u00e1 hesla nem\u011bnili, proto\u017ee je to pr\u00fd zbyte\u010dn\u00e9 a pr\u00fd jsou lep\u0161\u00ed techniky na va\u0161i ochranu.Abych byl zcela p\u0159esn\u00fd dovol\u00edm si citovat \u010dlov\u011bka na t\u00e9 nejvy\u0161\u0161\u00ed \u00farovni, toti\u017e pana Aarona Margosise, bezpe\u010dnostn\u00edho konzultanta Microsoftu, kter\u00fd prohl\u00e1sil doslova. \u201ePravideln\u00e1 expirace hesel je zastaral\u00e9 a p\u0159ekonan\u00e9 zabezpe\u010den\u00ed, kter\u00e9 u\u017e dnes nem\u00e1 velk\u00fd v\u00fdznam.\u201cNu, proti odborn\u00edkovi lze jen t\u011b\u017eko vystoupit, nav\u00edc, kdy\u017e m\u00e1 asi pravdu. A tu asi m\u00e1, proto\u017ee podobn\u00e9 prohl\u00e1\u0161en\u00ed, jen naprosto jinak zabalen\u00e9 a jinak \u0159e\u010den\u00e9 u\u010dinila i dal\u0161\u00ed firma, a to NIST. (National Institute of Standards and Technology).Ve v\u00fdsledku se tedy hesla m\u011bnit maj\u00ed, ale jen tehdy, je-li podez\u0159en\u00ed, \u017ee byla prolomena, nebo p\u0159i prok\u00e1zan\u00e9m pokusu o jejich prolomen\u00ed. Tak\u017ee t\u011bm, co nepou\u017e\u00edvaj\u00ed \u017e\u00e1dn\u00fd program pro zm\u011bnu a \u00fadr\u017ebu hesel, u\u0161et\u0159ili tito odborn\u00edci spoustu starost\u00ed.Zm\u011bna hesla je pro hackera dosti o\u0159\u00ed\u0161ek, proto\u017ee mus\u00ed za\u010d\u00edt sv\u016fj pokus znova a od za\u010d\u00e1tku. Jakkoli je pro n\u011bj nalezen\u00ed \u010dty\u0159m\u00edstn\u00e9ho PINu jen rozcvi\u010dkou, p\u0159i sto dvaceti osmi bitov\u00e9m \u0161ifrov\u00e1n\u00ed se ji\u017e dost zapot\u00ed. Nota bene, kdy\u017e je heslo slo\u017eit\u00e9 a jsou pou\u017eity v\u0161echny mo\u017en\u00e9 znaky. Tak\u017ee nakonec stejn\u011b zbude na v\u00e1s, na \u010dten\u00e1\u0159i, jak se k tomu postav\u00edte.\u00a0                                                                                                                                                                                                                                                                                                                                                                                                "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Jak \u010dasto m\u011bnit hesla","item":"https:\/\/www.telsey.cz\/jak-casto-menit-hesla\/#breadcrumbitem"}]}]