If you think you’re safe from fraud when you hand a cashier a credit card, think again. A cashier in Tokyo admitted to using his “photographic memory” to steal the information from customers.

According to People, Yusuke Taniguchi, a store cashier in Tokyo, was able to grab the information of over 1300 customers. He then used the cards for shopping online. After Taniguchi’s recent arrest, police found a notebook containing credit card numbers, names, security codes, and expiration dates. He was able to gather all that information in the short time it took for customers to make a transaction where he worked.

Even though Taniguchi claims to have used “photographic memory,” experts explain that there is no evidence that photographic memory exists. However, Eidetic memory, which is when someone can recall an image after seeing it once, does.

Other experts think Yusuke Taniguchi was just an expert memorizer.