Researchers have created a proof-of-concept malware that threatens to give attackers control of USB smart card readers attached to an infected computer running Microsoft's Windows operating system.
But one clue to something unusual might be the blinking activity LED on the smart card reader when the card is accessed by the attacker, he said.
The malware.lu team tested its malware prototype with the national electronic identity card (eID) used in Belgium and some smart cards used by Belgian banks.
Belgium's eID lets citizens conduct transactions like filing their taxes online, signing digital documents, and making complaints to police.
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