The popular Chinese video app TikTok has been banned from all U.S. House of Representatives-managed devices, according to the House’s administration arm, mimicking a law soon to go into effect banning the app from U.S. government devices. The app is considered “high risk due to a number of security issues,” the House’s Chief Administrative Officer (CAO) said in a message sent to all lawmakers and staff on Tuesday, and must be deleted from all devices managed by the House. The new rule follows a series of moves by U.S. state governments to ban TikTok, owned by Beijing-based ByteDance Ltd, from...