US bans China-based TikTok app on all federal government devices

Move follows House of Representatives ban, which TikTok called a political measure that will do nothing' for national security

TikTok has been banned on all federal government devices in the US, with limited exceptions, after Joe Biden signed a $1.7tn (1.4tn) spending bill on Thursday containing a provision that outlaws the China-based app over growing security concerns.

The ban - which was approved by Congress in a vote last week - is a major step targeting the fastest-growing social media platform in the world as opponents express worry user data stored in China could be accessed by the government.