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"Privacy Warning" and "Weak Security" on Wi-Fi: What They Mean

Apple devices show these notes under a Wi-Fi network when your privacy protections are off or blocked, or when the network uses outdated encryption.

Your iPhone or Mac shows “Privacy Warning” or “Weak Security” under your Wi-Fi network and you want to know if it's a problem.

  • “Privacy Warning” under the network name on iPhone or iPad.
  • “Weak Security” under the network name.
  • A note that the network is blocking encrypted DNS traffic.

Quick fix

Tap the network (ⓘ) to read the exact explanation. Privacy Warning usually means Private Wi-Fi Address is off for this network: turn it back on (Fixed or Rotating) unless the network requires your real address. Weak Security means the router uses WEP, WPA or WPA2 with TKIP: change the router to WPA2 (AES) or WPA3.

Why it happens

Private Wi-Fi Address is turned off for the network.Most likely
The router uses WEP, WPA or WPA2-TKIP encryption (Weak Security).Most likely
The network blocks encrypted DNS, so your lookups are visible to it.Sometimes
The network has no password at all (open Wi-Fi).Sometimes

Fixes

  1. Turn Private Wi-Fi Address back on

    1. iPhone: Settings › Wi-Fi › ⓘ › Private Wi-Fi Address: Fixed or Rotating.
    2. Mac: System Settings › Wi-Fi › Details next to the network › Private Wi-Fi address.

  2. Fix Weak Security on your router

    1. Log in to the router and set wireless security to WPA2 (AES) or WPA2/WPA3, never WEP, WPA or TKIP.
    2. Reconnect devices with the new settings.

  3. Encrypted DNS blocked

    1. Networks that block encrypted DNS can see the sites you look up. On networks you don't trust, use a VPN.

Still not working?

On public networks with these warnings, avoid logging in to sensitive accounts without a VPN. On your own network, both warnings are fixable in the router or device settings.

See it in the app

LightAtom's optional DNS helper reads plain DNS answers, the same traffic a network can see when encrypted DNS is blocked, and labels connections in the connections view with them.

Frequently asked questions

What does Privacy Warning mean on iPhone Wi-Fi?

Your iPhone is sharing its real hardware address with this network (Private Wi-Fi Address is off) or the network blocks encrypted DNS. The explanation under the network says which.

What does Weak Security mean on Wi-Fi?

The network uses outdated encryption: WEP, WPA or WPA2 with TKIP. Traffic on the Wi-Fi can be cracked more easily. Change the router to WPA2 (AES) or WPA3.

Should I turn off Private Wi-Fi Address?

Only if the network requires a fixed address, like some routers with MAC filtering or parental controls. Otherwise keep it on to limit tracking across networks.

Related

LightAtom team

The people who build LightAtom, a network monitor for macOS.