PIN
N/A
PIN码
PIN · N/A · PIN码 · pin · personal identification number · passcode · Digital Security · locks · mobile · everydayDigital Securitypersonal identification number passcode/pin/
Also known as: personal identification number, passcode
Last updated August 9, 2026
Definition
A PIN is a short numeric code used to unlock a phone, card, or account. It is convenient but weaker than a long unique password if it is easy to guess.
Real-World Example
Using 1234 as a phone PIN is risky; a longer random PIN or biometrics plus a strong backup PIN is safer.
References
Related terms
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