TikTok updated their privacy policy in an attempt to cover the legitimacy of collecting even more data from their end users.
source: https://www.pandasecurity.com/en/mediacenter/security/tiktok-privacy-faceprints/
archived source: https://wellthissucks.xyz/2021/06/22/tiktok-quietly-updated-privacy-policy-to-collect-faceprints-and-voiceprints-archived-source/