Microsoft has discontinued Forefront Unified Access Gateway (UAG) and Forefront Threat Management Gateway (TMG), solutions for remote application access control, security and optimization. Microsoft UAG/TMG evolved over many years to integrate multiple functions to protect Microsoft applications. It is a key component of several Microsoft application deployments including Microsoft Exchange, SharePoint and Lync. However, the TMG and UAG deployments are not limited to protecting Microsoft applications.
Securing web applications accessible over the web is a complex task. A compromise may lead to a significant performance hit to the application, especially when under an attack that may impact business, or worse, security breaches.