TikTok found to have tracked Android users’ MAC addresses until late last year
Until late last year social video app TikTok was using an extra layer of encryption to conceal a tactic for tracking Android users via the MAC address of their device, which skirted Google’s policies and did not allow users to opt out.
Analysis found that this concealed tracking ended in November as U.S. scrutiny of the company dialed up, after at least 15 months during which TikTok had been gathering the fixed identifier without users’ knowledge.
Source: TikTok found to have tracked Android users’ MAC addresses until late last year | TechCrunch