The commissions of the House of Commons and House of Lords have followed the UK government by banning social media app TikTok over cybersecurity concerns. A parliament spokesman said that TikTok \u201cwill be blocked from all parliamentary devices and the wider parliamentary network,\u201d a move that TikTok has described as \u201cmisguided\u201d and \u201cbased on fundamental misconceptions\u201d about the company.The latest ban came as TikTok\u2019s chief executive, Shou Zi Chew, faced hours of tough questioning by deputies in the US House of Representatives over whether the popular app is a \u201ctool\u201d of the Chinese Communist Party amid widespread concerns that user data from the app (owned by Beijing-based company ByteDance) could end up in the hands of the Chinese government, posing national security risks.Ban welcomed by former Conservative leader, called a \u201cself-defeating step\u201d by TikTokThe ban means MPs and guests to parliament will not be able to access TikTok on devices connected to official Wi-Fi accounts \u2013 if they want to use the app on their phones, they will have to connect to their own mobile data provider. Former Conservative leader Iain Duncan Smith welcomed the decision, adding, \u201cIt\u2019s now time that TikTok is also banned from ministers\u2019 personal telephones.\u201dIn response to the ban, a TikTok spokesman said, \u201cDespite our requests, we have not been offered any opportunity to address concerns,\u201d Sky News reported. \u201cPotentially depriving users from access to and engagement with their representatives is a self-defeating step, especially in our shared fight against misinformation,\u201d they added. \u201cWe have begun implementing a comprehensive plan to further protect our European user data, which includes storing UK user data in our European data centers and tightening data access controls, including third-party independent oversight of our approach.\u201dTikTok chief insists app \u201cnot an agent of China\u201dIn a US Congress hearing this week, Shou Zi Chew said that TikTok is \u201cnot an agent of China\u201d and insisted that the video sharing app poses no risk to national security. Over several hours, Chew was pressed by deputies on the House Committee on Energy and Commerce on various topics such as TikTok\u2019s content moderation practices and the company\u2019s spying on journalists.\u201cMr. Chew, you are here because the American people need the truth about the threat TikTok poses to our national and personal security,\u201d said the committee\u2019s chair, Cathy McMorris Rodgers. TikTok has repeatedly chosen a path for more control, more surveillance, and more manipulation, Rodgers added.Chew argued that TikTok parent company ByteDance prioritizes the safety of its young users, highlighting the firm\u2019s intention to protect US user data by storing information on servers maintained and owned by server giant Oracle. Several committee members reportedly found some of Chew\u2019s answers evasive.