Never use personal information such as your name, birthday, or spouse’s name. Personal information is often publicly available, which makes it much easier for someone to guess your password.
Use a longer password. Your password should be at least six characters long, and for extra security it should ideally be at least 12 characters (if the site allows it).
If you need to write down your passwords, keep them in a secure place. It’s even better if you encrypt your passwords, or just write down hints for them that others won’t be able to understand.
Don’t use the same password for each account. If someone does discover your password for one account, all of your other accounts will be vulnerable.
Try to include numbers, symbols, and both uppercase and lowercase letters (if the site allows it).
Avoid using words that can be found in the dictionary. For example, “swimming1” would be a weak password.
Random passwords are the strongest. Use a password generator instead of trying to think of one your own.
Random passwords are harder to remember, so create a mnemonic device. For example, “S=jKp2#” can be remembered as “JERRY = jessica NOKIA Nija 1 #.” This may still seem random, but with a bit of practice it becomes relatively easy to memorize. You can also choose a sentence that you know you’ll remember and then use the first letter of each word in the sentence, plus a few symbols or numbers, as your password.