Could someone enlighten me?
Chinese 2017 National Security Law Article 7 says "Any organization and citizen shall support, assist and cooperate with national intelligence work in accordance with the law" [1]. This law says TikTok must obey and help the Chinese government national intelligence.
The concern is that although you live in Canada, US, Europe; you can still be "arrested" by Chinese police working in hidden police departments in the Canada, US, and Europe [2]. And TikTok will tell them where you are. From the second article: FBI director Christopher Wray told a US Senate hearing in November that attempts by China to set up a police presence on US soil "violates sovereignty and circumvents standard judicial and law enforcement cooperation processes".
The concern is that although you live in Canada, US, Europe; you can still be "arrested" by Chinese police working in hidden police departments in the Canada, US, and Europe [2]. And TikTok will tell them where you are. From the second article: FBI director Christopher Wray told a US Senate hearing in November that attempts by China to set up a police presence on US soil "violates sovereignty and circumvents standard judicial and law enforcement cooperation processes".
[1] http://www.npc.gov.cn/npc/c30834/201806/483221713dac4f31bda7... [2] https://www.bbc.com/news/world-us-canada-64909560