Major flaw’ discovered in Visa’s contactless cards
Contactless debit cards – which are meant to have a spending cap of £20 per purchase – could be manipulated to transfer thousands into a scammer’s account, experts say.
Shoppers can buy sandwiches, bus tickets and other small items by simply tapping their card on a scanner at a till, without having to type in a PIN.
But the £20 limit on transactions can be bypassed by setting the scanners to use foreign currencies, security experts from Newcastle University have found.