Password Security Tips
If you don’t follow these parameters, you may not be able to create your password.
Avoid the obvious: A password based on a name, birthday, Social Security number, Xfinity ID or something similar isn't a good choice.
Longer is better: Create a new password that is between eight (minimum) to 128 characters.
Use the entire keyboard: Combine numbers, letters (upper and lowercase) and symbols to create a unique, secure password.
Do not include spaces.
Make sure you can reset it: Routinely check that your contact methods are up-to-date and verified (mobile phone number and/or personal email address).