Singapore has been using QR codes for a long time, with just one wallet provider having over 1.2 million monthly QR code transactions.
Can you point to news articles of people being scammed via the methods you describe?
Can you point to news articles of people being scammed via the methods you describe?
So not a single case in tens of millions transactions. Seems like no point in posting since it isn't actually a problem in practice.
It is also clear that it is only really a problem for the vendor, who doesn't receive the money, not the customer, who already has the service/product.
Citation needed. And I doubt it given that it's working since Monday.
Also to take into account that Singapore is basically a city, so as a sample it's not very representative.