Walk past a shiny sticker on a wall, scan it quickly, and boom — a problem starts growing quietly inside a phone. QR codes ...

The fraudulent messages demand immediate payment and often threaten court action to pressure victims into responding.

E-commerce website Amazon was down for thousands of users in the ‌U.S. on Thursday, according to Downdetector.com. There ‌were more than 21,700 reports of issues with the website ​as of 3:48 p.m.