According to mediapost.com, the average American will own 13 internet connected devices by 20211. That means a family of 4 will have close to 50 devices connected to their home network. In the current climate of large-scale vulnerabilities, ransomware, and other digital threats, how can we protect our devices, and those of their family members, when we may not even know exactly what is connected to our network? Vigil is a home network sentry that constantly monitors and scans every device connected to your wireless network and sends an alert when it detects an outdated or vulnerable device and when a new, unrecognized device connects to the network. Vigil allows its users complete transparency into the devices on their network, and also offers easy to understand, actionable information to non-technical users. This paper summarizes the process and technical details for the development of Vigil and its real-world usage data