Bans on TikTok on government-issued devices in the U.S., the European Union and Canada are prompting lawmakers in some of Washington’s main intelligence-sharing allies to demand that their countries follow suit. Australia and New Zealand haven’t banned TikTok across all government agencies, instead leaving it to individual departments to decide whether their employees can install the app. Australian government departments—including defense—prohibit the installation of TikTok, owned by Beijing-based ByteDance Ltd., but some lawmakers say the lack of a blanket ban creates unnecessary national security risks.

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