Tips for a strong password. Choose a password that is a minimum of eight characters in length. This will make it more secure. Do not choose a password that contains a complete word. Ensure the password is very different from previous passwords. Choose a mix of characters. A good password should contain some uppercase letters as well as some lowercase letters. Add in some special symbols and numbers. Form a password using a random sequence of characters that makes sense to you so you can remember it. Try adding some numbers to the base word and then add some punctuation and/or symbols.