Don’t base passwords on personally significant information: Don’t use family members’ names, sports teams, favorite bands, or anything else that could be socially engineered or deduced from your social media.Don’t share your passwords: Passwords are private.Don’t re-use passwords: Don’t do this on the same or different systems.Three or four unrelated words connected by punctuation, symbols, or numbers make it much harder to crack than a string of gobbledygook or a password with vowels swapped out for numbers. Don’t use passwords at all: Use passphrases instead.Some of the older practices are no longer valid. However, the good old password is still with us and will be for a long time to come. This means you need to know how best to create and use them. Two-factor and multifactor authentication enhances password protection, and biometric authentication provides an alternative method of identification. Passwords are still the most common form of account authentication. With the advent of multiuser time-sharing computer systems, the importance of separating and protecting people’s data became apparent, and the password solved that problem. The computer password was born from necessity.
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