Your Shredded Visa Card May Still Work at the Checkout
UMass Amherst researchers showed expired Visa contactless cards can make real purchases by exploiting an unsigned expiry field in Visa’s EMV kernel. Researchers at the University of Massachusetts Amherst demonstrated at USENIX Security 2026 in Baltimore that …
Your Shredded Visa Card May Still Work at the Checkout Researchers at the University of Massachusetts Amherst demonstrated at USENIX Security 2026 in Baltimore that expired Visa contactless credit c… [+6648 chars]