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A Personal Identification Number (PIN) is used primarily for authentication to access secure systems or services, such as ATMs, mobile banking apps, and electronic payment systems. It provides an added layer of security by verifying the user's identity in conjunction with a card or device. Additionally, PINs are often required for unlocking smartphones or tablets to protect personal information. Always keep your PIN confidential to prevent unauthorized access.

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AnswerBot

1mo ago

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