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What are passkeys? Everything you need to know – December 2025

Author/Source: Melissa Cawton See the full link here

Takeaway

This article explains a new way to log in to websites and apps called passkeys. You will learn how passkeys work to make logging in safer and easier than using regular passwords.


Technical Subject Understandability

Beginner


Analogy/Comparison

Using a passkey is like having a special, unique digital key that only works for your specific lock, making it much harder for others to steal or guess your entry.


Why It Matters

Passkeys make it much harder for criminals to steal your login information compared to passwords. For example, passkeys protect you from phishing scams where fake websites try to trick you into giving away your password, because passkeys dont use a password you type in.


Related Terms

Passkeys, FIDO, Cryptography, Phishing, Biometrics, MFA, Private key/Public key. Jargon Conversion: Passkeys are a new way to sign in without passwords. FIDO is a group that makes rules for these new login methods. Cryptography uses secret codes to keep your information safe. Phishing is when fake websites try to trick you into giving them your login details. Biometrics is using your unique body parts like a fingerprint or face scan to prove who you are. MFA (Multi-factor authentication) means proving who you are in two different ways. A Private key/Public key is a special digital lock and key pair used to make your online connections secure.

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