Post #1966911
2026-04-29 07:16 UTC
On iOS and most androids, your Mac address is only scrambled per network. So when you connect to the same network again, your device will use the same Mac address. This generally isn’t an issue if you’re using a private wifi network, or any network where the password isn’t public, but for public wifi it makes it much easier to identify you.
Replies (2)
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@ms_lane@lemmy.world 2026-04-29 09:06
And track you, Cisco has had the ability to track MAC addresses over their APs on a map for 2 decades now. Also track you over multiple networks- most only care about the SSID- so if you’ve ever connected to “eduroam” you can be tracked across multiple campuses.
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@Scipitie@lemmy.dbzer0.com 2026-04-29 10:43
Thanks for the addition! Edited to make it more clear: there part also referred only to the time before you’ve connected.