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12 cards from this deck
Process of proving who you are to a computer system
Passwords, electronic devices, biometrics
Enter username & password, system checks if they match stored user
Passwords can be forgotten, stolen, or guessed
Smart card, USB key, mobile phone, text code, email
Uses measurements of unique physical characteristics
Fingerprint, voice recognition, facial recognition, eye scans
Combines two different authentication methods for better security
Attacker needs to compromise two security factors, not just one
If database is hacked, everyone's passwords would be exposed
Converts password into a long number that can't be reversed
One-way process - can't work backwards from hash to password
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