![Connecting to the UCL VPN with macOS 11 (Big Sur) 12 (Monterey) or 13 (Ventura) | Information Services Division - UCL – University College London Connecting to the UCL VPN with macOS 11 (Big Sur) 12 (Monterey) or 13 (Ventura) | Information Services Division - UCL – University College London](https://www.ucl.ac.uk/isd/sites/isd/files/styles/medium_image/public/ucl-vpn-macos11-anyconnect4.9-system-extension-blocked.png?itok=vHg4VTHN)
Connecting to the UCL VPN with macOS 11 (Big Sur) 12 (Monterey) or 13 (Ventura) | Information Services Division - UCL – University College London
![Installing System Extensions - Tunnelblick | Free open source OpenVPN VPN client server software GUI for Mac OS X. Installing System Extensions - Tunnelblick | Free open source OpenVPN VPN client server software GUI for Mac OS X.](https://tunnelblick.net/images/a-program-tried-to-load-a-new-system-extension-2021-02-01.png)
Installing System Extensions - Tunnelblick | Free open source OpenVPN VPN client server software GUI for Mac OS X.
![Tunnelblick on macOS High Sierra and macOS Mojave - Tunnelblick | Free open source OpenVPN VPN client server software GUI for Mac OS X. Tunnelblick on macOS High Sierra and macOS Mojave - Tunnelblick | Free open source OpenVPN VPN client server software GUI for Mac OS X.](https://tunnelblick.net/images/cHighSierra-kext-approval-2017-10-06.png)
Tunnelblick on macOS High Sierra and macOS Mojave - Tunnelblick | Free open source OpenVPN VPN client server software GUI for Mac OS X.
Error message: “System Extension Blocked” seen on macOS endpoin... - Knowledge Base - Palo Alto Networks
![app store - VPN System Extension blocked even though it's notarized, requires user open macOS System Preferences. Is it b/c the app is not on the mac AppStore? - Stack Overflow app store - VPN System Extension blocked even though it's notarized, requires user open macOS System Preferences. Is it b/c the app is not on the mac AppStore? - Stack Overflow](https://i.stack.imgur.com/CAxyP.png)