Using nothing more than guesswork, hackers can figure out all of the details on your credit card in just six seconds. This includes the card number, expiration date, and the security code for any Visa credit or debit card. Hackers can automatically generate variations of the security data and try them on multiple websites until they get a 'hit,' and experts warn such an attack is 'frighteningly easy' to carry out.
And, there's no sure way to prevent these types of attacks. ‘Sadly there's no magic bullet,' says Dr Martin Emms, co-author on the paper. ‘But we can all take simple steps to minimize the impact if we do find ourselves of a hack.
For example, use just one card for online payments and keep the spending limit on that account as low as possible. ‘If it's a bank card then keep ready funds to a minimum and transfer over money as you need it. ‘And be vigilant, check your statements and balance regularly and watch out for odd payments. ‘However the only sure way of not being hacked is to keep your money in the mattress and that's not something I'd recommend.'
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