Singapore’s personal data watchdog is investigating cellphone maker Xiaomi following a user’s complaint that the company is giving out user data to telephone marketers. The user claims he received marketing calls from overseas after acquiring the phone, according to the Wall Street Journal. Earlier this month, security firm F-Secure looked into a complaint to see if Xiaomi was sending user data to remote servers in China without customer consent. Researchers at F-Secure took a brand new RedMi 1S, set it up, added a contact to their address book, then called and texted that number.