Your Shredded Visa Card May Still Work at the Checkout
UMass Amherst researchers demonstrated expired Visa contactless cards can complete real purchases via relay attacks exploiting Visa Kernel 3's unsigned expiry date handling.
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Product
Visa Kernel 3
- Mentions · 7d0
- Mentions · 30d0
- All mentions2
- First seenAug 20, 2026
- Last mentionedAug 21, 2026
Timeline
2 articles · newest firstZombie Card Attack Can Revive Expired Visa Cards for Contactless Payments
UMass Amherst researchers demonstrate Zombie Card, an NFC relay attack that revives expired Visa contactless cards for in-store purchases without breaking cryptography.
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Appears with
- Visavendor · 2
- University of Massachusetts Amherstorganization · 2
- American Expressvendor · 2
- Discovervendor · 2
- Mastercardvendor · 2
- SumUp Soloproduct · 1
- EMVCoorganization · 1
- USENIXorganization · 1
- five major US banksvictim · 1
- SumUp Plusproduct · 1
- Khwarizmi Laborganization · 1
- SumUpvendor · 1
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