Canada, Australia, the US and European Union countries have banned TikTok from official phones and tablets. Colleges, universities and schools in other countries have also banned TikTok from their WiFi networks.
TikTok is a popular video-sharing app, where people can create and share short videos on various topics. The Chinese company has over a billion users around the world.
Western countries have been accusing TikTok of sharing user information with the Chinese government.
TikTok denies any wrongdoing . In the meantime TikTok has added safety features targeted at children. It limits the use of Tiktok for under 18 year olds to 1 hour a day.