ModSecurity - ModSecurity is an Open Source web application firewall developed by Trustwave's SpiderLabs.

Symantec Email Security.cloud - Symantec Email Security.cloud provides always-on, inbound and outbound email security against malware, targeted attacks, and advanced threats

Barracuda Web Application Firewall - Barracuda Web Application Firewall offers security and DDoS protection against automated & targeted attacks.

pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more

F5 NGINX - F5 NGINX is a web application security solution that allows you to protect your applications, APIs, and customer data across cloud servers, on-premises data centers, and architectures.

SonicWall - SonicWall security solutions protects your network, systems, users and data from cyber threats.