Experts warn such an attack is frighteningly easy to carry out.

Newcastle team warn such an attack is frighteningly easy if you have a laptop and an internet connection.

Secondly, different websites ask for different variations in the card data fields to validate an online purchase.

Distributed Guessing Attack Allows Hackers To Guess Your Credit Information In 6 Seconds (Video)

Use just one card for online payments and keep the spending limit on that account as low as possible.

And be vigilant, check your statements and balance regularly and watch out for odd payments.

Source:RT

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source: www.techworm.net