Password strength is a measure of the effectiveness of a password in resisting guessing and brute-force attacks. In its usual form, it estimates how many trials an attacker who does not have direct access to the password would need, on average, to guess it correctly. The strength of a password is a function of length, complexity, and unpredictability.
Using strong passwords lowers overall risk of a security breach, but strong passwords do not replace the need for other effective security controls. To choose strong passwords follow the following steps:
Step #1: Make it Lengthy
Make sure your password has eight or more characters since this is usually the minimum for most password requirements. The longer the password the better.
Example: mystrongpasswordissecure
Step #2: Add numbers to your words
Example: strongpassword2291
Step #3: Use special characters
Example: password$$200
Step #4: Use upper and lowercase letters
Example: PassWord$$200
Step #5: Generate similar but altered passwords. Use the same or similar base-words to help you remember your passwords easily without making them "too" easy to crack
Example: PassWord$$200 can become *200WordStrongPass$$
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