The BBC seems to be the first UK media organisation to issue the guidance - and only the second in the world after Denmark's public service broadcaster.
The BBC said it would continue to use the platform for editorial and marketing purposes for now. TikTok has consistently denied any wrongdoing.
The app has been banned on government phones in the UK and elsewhere.
Countries imposing bans include the US, Canada, New Zealand and Belgium, while the same applies to anyone working at the European Commission.
However, it is still permitted on personal devices.