RedSeal is a digital resilience platform designed to discover network vulnerabilities, including those that go around firewalls. It also tracks network health and provides an overall vulnerability score that can be monitored by executives or IT staff. It is designed to work completely offline, with technicians either feeding it information physically at regular intervals, or by allowing it to collect data from other security appliances. Users are basically giving the appliance the keys to their kingdom, allowing an internal device to accurately plot all possible attack vectors through a network.”]
Source: https://www.csoonline.com/article/3202064/redseal-offers-powerful-passive-network-protection.html