China’s favorite mobile payment technology has a security problem

QR codes are cheap and easy to use, but also vulnerable to scammers

A QR code on a rental bike in Shenzhen. (Picture: South China Morning Post)
Mr. Kwok hadn’t even finished paying for his meal when he received an SMS on his phone, saying that 999 yuan (US$148) was just deducted from his electronic wallet. What’s more, even though he was at a restaurant, the money was sent to a billiard hall, according to Shaanxi Television.

Kwok, a police officer, asked to check the surveillance footage. The culprit turned out to be someone who surreptitiously photographed Kwok’s phone screen, which was showing his personal QR code on Alipay -- Alibaba’s payment app. Using that picture, the offender was able to spend with Kwok’s account.

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