TikTok banned on London City Hall devices over security concerns

London City Hall staff will no longer have TikTok on their devices in the latest ban imposed on the Chinese-owned social media app over security concerns. The Greater London authority (GLA) said the rule was implemented as it takes information security "extremely seriously". It comes after the UK government banned ministers from using the video-sharing app on their work phones after a security review. The House of Commons and the Lords also cited security concerns as they decided to ban the app across the Palace of Westminster. A parliament spokesperson said: "Following the government's decision to ban TikTok from government…