Technology has made seemingly everything fast, convenient and easily accessible. This is certainly true of quick response (QR) codes, those ubiquitous symbols you can find on everything from restaurant menus to product packages to advertisements. When you scan QR codes with a smartphone, you can access prices, instructions, product information and even payment apps. But as with most technologies, fraud perpetrators have found ways to exploit QR codes — and steal from consumers and businesses. Here’s what you need to know. How thieves use them Last year, the FBI issued an alert about QR code tampering. Fraudsters replace or alter QR codes so that users are directed to malicious websites or inadvertently download malware onto their devices. Such schemes enable fraudsters to access victims’ account usernames and passwords...