CNN CNN Newsroom January 18, 2014 16:44:00
Detailing just how those hackers pulled off one of the biggest data heists ever. >> now with this new information that many other retailers could potentially have been breached, that number could potentially double in the next couple weeks. >> reporter: here's how they did it. according to a cybersecurity firm called eyesight, they used highly sophisticated and nearly undetectable malware that's a computer program that is surreptitiously placed in a system to corrupt point of sale systems. that means at the register itself, your information was being grabbed. eyesight says many retail organiza...