You can read up on it here: https://robertheaton.com/2019/01/15/a-brief-history-of-wi-fi-privacy-vulnerabilities/ https://robertheaton.com/2019/01/15/a-brief-h

You can read up on it here: https://robertheaton.com/2019/01/15/a-brief-history-of-wi-fi-privacy-vulnerabilities/ https://robertheaton.com/2019/01/15/a-brief-history-of-wi-fi... Looks like more recent phones are better about this, but there are still a lot of older phones out there! And there are still leakages that allow tracking. Note that with "real computers", just keeping the software up to date is enough to get you the latest in MAC randomization and whatnot; with phones, you may or may not be able to upgrade your software. -.-