WWII-Era Spy Tech Could Make Ultra Secure Bank Cards

A military Enigma machine used during the late 1930s.
A military Enigma machine used during the late 1930s.
(Image credit: Alessandro Nassiri, Creative Commons Attribution-Share Alike)

Grim irony alert: You know those new smart chips on your credit card? They've actually triggered a virtual crime wave. Hackers and identity thieves, in a rush to exploit the old magnetic swipe cards while they still can, stole an estimated $4 billion in 2016 — a new record.

The smart chips are expected to prevent fraud in the long term, but banks are already thinking of the next big defensive maneuver: A digital update to World War II cipher technology that will replace that three-digit code on the back of your card.

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