Post #2723140
2026-04-22 14:16 UTC
Yes, every app installed on your iPhone can see your local IP address if you're connected to a Wi-Fi. No permission is required for this and a VPN cannot prevent it.
Knowing the local IP address could for example allow an app to infer if you’re at home or visiting a friend if the two networks use different subnet values (e.g. 192.168.x.x and 10.0.x.x)
#privacy #infosec
Replies (1)
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@mysk@mastodon.social 2026-04-22 15:29
🤯 Every app installed on the iPhone can read the iPhone's storage volume creation timestamp (down to the second). No permission required. This value remains the same until the volume is erased. Yikes!! The UUID seems to be the same for all devices.