Protect passwords as any other company asset. When creating passwords, make sure they are difficult to guess, but not so difficult that you have to write them down to remember them. Using obscure passwords keeps your user ID secure. Passwords based on personal information, such as your name or birthday, are poor passwords. Even common words can be easily guessed.
Good passwords have at least six characters and include nonalphabetic characters.
Strange word combinations and words purposely misspelled are also good. However, if you must write them down, place them in a physically secure place, such as a locked cabinet. Do not use your user ID as a password. Do not use it reversed, doubled, or otherwise modified. Do not reuse passwords.