Nets warns of massive credit card hack in Denmark
Hackers like wearing balaclavas and business suits
Danish payment processor Nets has warned local banks of a possible data breach and advised them to block up to 100,000 credit cards, according to Reuters.
Nets suspects the security might have been compromised by hackers, and was possibly linked to transactions with a single internet retailer based abroad.
So far, none of the cards have been tampered with yet, but this might happen in the near future, Nets warns.
Visa and MasterCard have opened an investigation.
“By replacing possibly compromised cards pre-emptively, banks and shops can save an amount in the triple digit million [the local DKK currency] range, which they could suffer in losses from trades made with stolen credit card information,” Nets says.
Jyske Bank says it will block and replace 7,000 cards.
Nets has recently floated on Nasdaq Copenhagen Exchange, valued at DKK 30 billion ($4.5 billion).
