In troubling news, a paper from researchers at Newcastle University in the UK claims that Visa’s credit-card payment system can be compromised online in “as little as six seconds.” The security flaw was possibly the point of entry for the cyber-attack on the UK’s Tesco Bank that lost £2.5 million.

This isn’t some high-level hacking going on here either — all it takes for a determined thief to grab a treasure trove full of card data is a laptop with an internet connection and some basic guesswork, the paper says.

But there’s a way to stop it. Read more…