VBOS (Vulnerability below the OS) refers to vulnerabilities that exist in layers below the OS, such as firmware. There is a growing need for countermeasures against these vulnerabilities because, if exploited by attackers, they would be able to obtain high privileges and would be difficult to detect. VBOS countermeasures visualize terminals, servers, network devices, etc. managed by companies, and provide a function to continuously check mainly firmware settings, update status, and presence of attacks.