GFI LanGuard is a network security scanner and patch management tool. GFI LANGuard provides network mapping and risk analysis. You need to install the GFI LANGuard on a single Windows machine, then this machine scans the network to discover all devices including servers, workstations, laptops, mobile devices, virtual machines, routers, switches, and printers etc. After scanning GFI LANGuard interrogate all found devices regarding security issues. If an issue discovered, the devices can be managed with or without an agent; using an agent will give IT administrators deeper results. While no security tool is a silver bullet, GFI LanGuard is attractive because it’s notably more mature than many security tools popping on the market and so has a feature depth you won’t find in many other platforms.