wifid (Wi-Fi Daemon) is a safe macOS network process. wifid is the macOS daemon that manages all Wi-Fi operations. It controls the Wi-Fi hardware, handles scanning for available networks, manages connections to known networks, performs WPA authentication, handles roaming between access points, and maintains the list of preferred networks. It also supports Wi-Fi Direct connections used by AirDrop. wifid maintaining a Wi-Fi connection and occasionally scanning for networks is normal. Be concerned if your Mac is frequently connecting to unknown or open networks you didn't join, or if wifid shows the Mac has joined a network with a name similar to your known network — this could indicate an evil twin attack where an attacker sets up a fake access point.
Wi-Fi Daemon
wifid is the macOS daemon that manages all Wi-Fi operations. It controls the Wi-Fi hardware, handles scanning for available networks, manages connections to known networks, performs WPA authentication, handles roaming between access points, and maintains the list of preferred networks. It also supports Wi-Fi Direct connections used by AirDrop.
Wi-Fi dropping connection intermittently or failing to reconnect
Slow Wi-Fi speeds despite strong signal strength
Mac not auto-joining known networks after wake from sleep
High CPU during continuous network scanning in areas with many Wi-Fi networks
Go to System Settings > Wi-Fi, click 'Details' next to the connected network, and select 'Forget This Network.' Then rejoin it and enter the password again. This clears any corrupted authentication state.
Go to System Settings > Wi-Fi > Details > DNS and add reliable DNS servers like 1.1.1.1 (Cloudflare) or 8.8.8.8 (Google). Slow or unreliable ISP DNS servers can make Wi-Fi appear slow when the actual radio connection is fine.
Remove /Library/Preferences/SystemConfiguration/com.apple.airport.preferences.plist and restart. This resets all Wi-Fi configuration including preferred networks. You'll need to rejoin your networks, but it resolves deep configuration issues.
In System Settings > Network, click the '...' menu and select 'Locations' > 'Add Location.' Switch to the new location. This creates a fresh network configuration while preserving the old one as a fallback.
wifid maintaining a Wi-Fi connection and occasionally scanning for networks is normal. Be concerned if your Mac is frequently connecting to unknown or open networks you didn't join, or if wifid shows the Mac has joined a network with a name similar to your known network — this could indicate an evil twin attack where an attacker sets up a fake access point.
CoreLock monitors Wi-Fi connection behavior and alerts you to suspicious network changes. It detects when your Mac connects to unfamiliar networks, warns about open (unencrypted) Wi-Fi connections, and can identify potential evil twin attacks by tracking access point hardware addresses.
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Common causes include interference from other devices, router firmware bugs, corrupted Wi-Fi preferences on your Mac, or your Mac preferring a weaker 2.4 GHz signal over a stronger 5 GHz one. Try forgetting and rejoining the network, or delete the Wi-Fi preference file and restart.
wifid is the core Wi-Fi management daemon on macOS. It controls the Wi-Fi hardware, handles network scanning and joining, manages WPA/WPA2/WPA3 authentication, handles seamless roaming between access points, and maintains your list of preferred networks.
Yes. wifid is a fundamental Apple system process present on every Mac with Wi-Fi capability. It is code-signed by Apple, manages encrypted network connections, and is protected by System Integrity Protection. It is responsible for keeping your Wi-Fi connections secure.
Download CoreLock to identify suspicious processes, detect threats, and keep your Mac running smoothly.
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