Note - it can be as short as you want, but the most secure passwords include:
• A combination of uppercase and lowercase letters; the password is case-sensitive, so uppercase letter "A" is considered as a different character than a lowercase "a".
• Numbers mixed in, alongside letters.
• One or more symbols, like underscore ("_"), hyphen ("-"), dollar sign ("$"), etc.
• Longer passwords are harder to guess.
Tip: when you step away from your computer, press Ctrl+Alt+L to lock all sensitive sections. Or hold down the Windows logo key and press "L" to prevent access to your PC.