Researchers at the University of Massachusetts Amherst have demonstrated an attack that revives expired Visa contactless credit cards for real in-store purchases by rewriting the expiration date a point-of-sale (POS) terminal reads over near-field communication (NFC), without breaking any of the card's cryptography.

The attack, which the researchers named "Zombie Card," requires physical



Source: TheHackerNews
Source Link: https://thehackernews.com/2026/08/zombie-card-attack-can-revive-expired.html