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Index/Topics/Card Validation Tools

Card Validation Tools

Tools for validating cards, including Luhn checksum and BIN/IIN lookups.

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1 result
Jan 28, 2026

How can merchants and payment processors check if a credit card is active without committing fraud?

Merchants and processors can and authorized without committing fraud by combining benign, issuer-approved checks — format and BIN validation, CVV and AVS lookups, authorization-only holds (including ’...

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