Researchers find a loophole that lets expired credit cards make unauthorized payments
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5 Articles
Passed Visa card can be reused in approximate payments for a failure identified by researchers. Understand the risk.
Could your old credit card still work after its expiry date? U.S. researchers have discovered a flaw that allows, in some configurations, outdated cards to be used to make contactless payments.
A study by scientists at the University of Massachusetts Amherst (UMass Amherst, USA) shows that some expired contactless credit cards can still be used to make payments in stores.
Researchers find a loophole that lets expired credit cards make unauthorized payments
A team from the University of Massachusetts Amherst has shown that a contactless credit card keeps working past its printed expiration date, even after the cardholder gets a replacement. They named it the Zombie Card attack and presented the findings at USENIX Security 2026. “This work is motivated by documented patterns of improper expired card […] The post Researchers find a loophole that lets expired credit cards make unauthorized payments ap…
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