![]() Instead you need to ask how long it's likely to take a cracker to guess it. Crackers download their software to break into your system from helpful sites around the Internet, so why not use their own tools to see whether they're going to be successful?īecause any password is guessable, and will eventually fall to a sufficiently devoted attack, it's useless to question whether a password can be cracked. Even trying enough to check against likely dictionary words and personally significant data, such as phone numbers and birth dates, isn't something that any sane person would spend time on manually. Trying seven million billion combinations by hand isn't practical. Ok, so testing passwords is easy to describe, but not so easy to implement from the keyboard. To usefully test a password's security, you've got to try the sort of guessing that a cracker might apply, and see whether the password succumbs. With one guess, then, it's difficult ( impossible, actually) to produce any statistic regarding whether a password is secure or not. ![]() ![]() The only difficulty is that if you're guessing, and you're guessing randomly, you're just as likely to guess any one string as another, and just as likely (or unlikely ) to guess any given password, no matter whether it's a dictionary word or a completely random string. ![]() Testing the security of a password is a simple exercise ”just see if you can guess it. ![]()
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