Tile trackers, used to locate everything from lost keys to stolen pets, are used by more than 88 million people worldwide, according to Tile’s parent company, Life360. But researchers who examined the tracking technology have found design flaws that would let stalkers—or potentially the manufacturer itself—track the location of Tile users and their devices, contrary to claims the company has made about the security and privacy of its devices.The researchers—Akshaya Kumar, Anna Raymaker, and Mich...