One thing that's bugging me currently in iOS is that I constantly see a "Privacy Warning" text in the wifi section because I turned of 'Private Wifi Address' since I'm on my own home network.
the purpose of this feature is primarily to encrypt unencrypted (http) traffic to stop both MITM &packet inspection by network admins (and compromised routers) as well as to prevent snooping by any ISP. Despite being on your home network, ISP snooping can still take place-- thus the privacy warning.
Is it? Afaik the _only_ thing that “Private WiFi Address” toggle changes is MAC randomization, so it uses a random MAC instead of the actual device MAC. Which is not what I want on my home network, I want the real address for firewall rules etc.
> Starting with iOS 14, iPadOS 14, and watchOS 7, your device improves privacy by using a different MAC address for each Wi-Fi network. This unique MAC address is your device's private Wi-Fi address, which it uses for that network only.
In some cases, your device will change its private Wi-Fi address:
If you erase all content and settings or reset network settings on the device, your device uses a different private address the next time it connects to that network.
Starting with iOS 15, iPadOS 15, and watchOS 8, if your device hasn’t joined the network in 6 weeks, it uses a different private address the next time it connects to that network. And if you make your device forget the network, it will also forget the private address it used with that network, unless it has been less than 2 weeks since the last time it was made to forget that network.
So there's a mapping that is like SSID -> MAC. They can get reset. But I stopped turning it off on my phone.