Install the SlickVPN package on macOS, including how to get past Gatekeeper’s unidentified-developer prompt.
From Help & Support, download SlickVPN.pkg. It lands in your Downloads folder.
Double-click SlickVPN.pkg. If macOS blocks it with “unidentified developer”, right-click the file and choose Open, then confirm.
Follow the installer prompts — Continue, Agree, Install — and enter your Mac password to authorise it.
Open SlickVPN from Applications, log in with your VPN credentials, and click Connect.
SLICKVPN
Weston Road PMB #231
Weston, Florida 33331, USA