'Flaw' in chip and PIN' means thieves can use cards without needing security code'
A fatal flaw in the chip and PIN technology that is supposed to guarantee the security of millions of credit and debit cards has been identified by scientists.
The loophole means stolen cards can be used in shop terminals and bank cash machines without being identified, it is claimed.
In theory, thieves would be able to make purchases and cash withdrawals without needing to key in the four digit PIN or being detected.
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