![]() ![]() You should absolutely not use the same password for all your authentication needs.Don't believe it hackers know all about this trick, and their cracking programs check for it. Many people think that changing the letter O to 0 (zero) or the letter l to 1 (one) makes a password secure.This means you should not use your name, your mother's name, your pet's name, your license plate number, your Social Security number, your phone number, your office number, your place of birth, or your shoe size. Don't use personal information for part or all of your password.For use on older Windows systems, several of the first seven letters particularly need to be other than lower case. If you mix in some CAPITAL LETTERS, some numerals, and some punctuation, you'll make the task of cracking your password very difficult. The shareware cracker that we use to check users' passwords can do it in thirty seconds, taking about 24 hours to do every user on PICnet. Hacker tools these days are so good that a brute force guessing program can break any 8 character lower case password. A password consisting of only lower case letters is not secure.Even made-up languages (like Tolkien's Elvish) are vulnerable to dictionary attacks, so don't use words from them either. Most hacker programs are set up to try to guess dictionary words, and they use extensive dictionaries from dozens of languages. Never use dictionary words from any language as the whole or part of your password. ![]() It's very obvious to even a casual observer when a password like this is typed in. ![]() ![]() Not only do hackers know the common ones, but this class of passwords is vulnerable to ``shoulder surfing''.
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