Don’t use passwords that are easy to guess: If you use your Social Security number, an anniversary, a sports team, a maiden name, a date of birth, or the word “password”, be aware that it’s easy to figure out. Keep in mind that there’s password-cracking software out there. Chose a phrase or combination of words or an acronym with a mix of letters and numbers to make your password difficult to crack but easy to remember.

Don’t write down your password: Use your memory. If you must put your password in writing, use your brain. Keep your password away from your computer and separate from the account name, preferably in a locked or secure location.

Don’t share your passwords with anyone: Just say no to such requests, no matter how difficult it is. “Anyone” includes your spouse or significant other, co-workers, and even the system administrator. And remember, no legitimate person will ever ask you to reveal your password.