In recent years, the IT environment of companies has become rapidly more complex due to the expansion of cloud services and the proliferation of IoT/OT devices. As a result, unidentified assets such as IT assets not registered in management ledgers, shadow IT, and devices unintentionally connected to the network have become new security risks. Against this backdrop, Continuous Threat Exposure Management (CTEM), which continuously identifies and manages the attack surface, is attracting attention. The first step in this is "Discovery (visualization)." Accurately understanding what assets exist within your company is essential for proper risk management. In this seminar, we will explain the background and risks of unidentified assets based on the concept of CTEM, and introduce practical methods for visualizing IT, IoT, and OT assets and managing continuous exposure using runZero. This seminar is recommended for those who are concerned about whether they have an accurate understanding of their company's assets, want to implement CTEM but don't know where to start, or want to strengthen asset management including IT, IoT, and OT.