Longer is better because, though pass phrases look simple, the increased length provides so many possible permutations that a standard password-cracking program will not be effective. A pass phrase is basically just a sentence, including spaces, that you employ instead of a single pass "word." Pass phrases should be at least 15 to 25 characters in length (spaces count as characters), but no less. Use a pass phraseĪnother common method for securing a password is to use a pass phrase instead of a password. They are, for obvious reasons, no longer secure choices for pass phrases. Note: Do not adopt any of the sample passwords shown above ( choklutt, va7ni9lla, etc.) as your own Kerberos password. Don't let one break-in give hackers access to all your accounts. When one site is compromised, hackers try to use those passwords to access accounts on other sites. Don't use the same password on multiple accounts.You can make three or four passwords if you like, then switch them throughout the year. Better yet, change your password every few months to shrink your exposure window. Change your password at least once a year.An easily pronounced nonsense word with some non-letters inside.An acronym for your favorite saying, or a song you like.Įxample: GykoR-66 (Get your kicks on Route 66) or L!isn! (Live! It's Saturday Night!).For example, take four words, and put some numbers between them: stiff3open92research12closer Add random capitalization to your passwords.Choose a word that is not composed of smaller words.Deliberately misspell the word or phrase.Introduce "silent" characters into the word.Avoid choosing a password that spells a word.Transform a phrase by using numbers or punctuation.Įxamples: Idh82go (I'd hate to go), UR1drful (you are wonderful).(Non-letters include numbers and all punctuation characters on the keyboard.) Mix letters and non-letters in your passwords.Use an acronym: choose the first or second letter of your favorite quotation.Įxample: itsotfitd ("It's the size of the fight in the dog").Remove all the vowels from a short phrase in order to create a "word.".the more "random" your password, the stronger. A random mix of alphabetical, numeric and symbolic characters.A 12-character password can take 200 years to crack, an 8-character password might only take a few hours. The more characters a password cracking program has to crunch, the harder it is to guess. Longer passwords are better passwords.It must not be a word that appears in the dictionary.It must not be based on your Kerberos username.It must be composed of characters in the Roman alphabet or symbols on the US keyboard.It must contain characters from at least two different character classes (upper- and lower-case letters, letters and symbols, letters and numbers, etc.).It must be different from your current password.Your password or pass phrase must conform to the following rules:
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