A Dutch police department issued a warning that this type of scam was making the rounds. Two suspects have been apprehended after robbing dozens of people and amassing tens of thousands of Euros. The scammers used social engineering to con victims into allowing them to scan the QR code on their own phone. By doing so, the victims provided the scammers with the login credentials to their banking environment. It is likely that they used money mules to convert those payments into cash they could then spend freely without raising suspicion.”]
Source: https://blog.malwarebytes.com/scams/2019/07/qr-code-scam-can-clean-out-your-bank-account/