WireGuard - Fast, Modern, Secure VPN Tunnel
StackPath - Secure Content Delivery Network, DDoS, WAF Service
OpenVPN - OpenVPN - The Open Source VPN
Flexera Software Vulnerability Manager - Flexera Software Vulnerability Manager provides solutions to continuously track, identify and remediate vulnerable applications.
Tunnelblick - free software for OpenVPN on OS X and macOS
Avast - Avast security software products are developed for Microsoft Windows, Mac OS X, Android and Linux users by AVAST Software.