In order to use the HackerOne Gateway, you need to install a VPN client that supports OpenVPN.
Refer to these installation and configuration instructions for your platform:
To configure the OpenVPN client to your Windows machine:
Download the OpenVPN Windows Installer from this page.
Execute the OpenVPN Installer.
Select these components when prompted:
Click Install when prompted to install a network adapter.
Click Finish to complete the setup
Start the OpenVPN GUI application.
Right-click the OpenVPN icon in the bottom right corner of the screen, and click Import file...
*.openvpnfile you downloaded from HackerOne (See Accessing your VPN Credentials).
Right-click the OpenVPN icon on the bottom right corner of the screen, and click Connect.
The VPN will start connecting.
To configure the OpenVPN client on macOS:
Your VPN will now be connected.