Keep Your Passwords to Yourself
If you use a password to access any computer or Internet services, make sure that they are hard to guess and keep them to yourself. Also, use different passwords for different things. If someone guesses a password for one, you don't want him to have access to all those services. Never give out your password to anyone, use a combination of letters and numbers in your password and make the password as meaningless as you can remember.
Create unique passwords - don't use your date of birth, social security number or recognizable words. Try to use one with a combination of letters, numbers and symbols and make the password as meaningless as you can remember.
One strategy for creating and remembering passwords is to come up with a phrase that only you would remember. For example, the phrase "I was married on June 24 in Finland," would result in the password "iwmoj24if" by using the first letter of each word in the phrase. This password includes both letters and numbers and will be more difficult to guess. Another easy way to remember a combination of these is to take the first letter of a favorite song or phrase, for example "Old McDonald Had a Farm" could be "omhaf."