Microsoft Forefront Threat Management Gateway (Forefront TMG), formerly known as Microsoft Internet Security and Acceleration Server (ISA Server), is a network security and protection solution for Microsoft Windows, described by Microsoft as "enables businesses by allowing employees to safely and productively use the Internet for business without worrying about malware and other threats". Forefront Threat Management Gateway 2010 (TMG) is a secure web gateway that provides comprehensive protection against web-based threats by integrating multiple layers of protections into a unified, easy-to-use solution. Forefront TMG allows your employees to safely and productively use the Internet for business without worrying about malware and other threats.

The Forefront TMG solution includes two components: Forefront Threat Management Gateway 2010 Server

Provides URL filtering, antimalware inspection, intrusion prevention, application and network-layer firewall and HTTP/HTTPS inspection in a single solution.

Forefront Threat Management Gateway Web Protection Service

Provides continuous updates for malware filtering and access to cloud-based URL filtering technologies aggregated from multiple web security vendors to protect against the latest Web-based threats. Key Benefits Multiple Web security technologies in a single solution. Multiple URL filtering data sources for better blocking. Intrusion prevention against exploitation of vulnerabilities Built-in, proven network protections of ISA 2006.