Many companies are experiencing discrepancies between their asset registers and the actual environment, making "invisible assets," including IT, IoT, and OT, a significant risk. This video explains why traditional asset management is reaching its limits and clearly describes the concept of "Discovery (visualization)" required in the CTEM era. We will also introduce how to visualize assets and risks across IT, IoT, and OT using runZero, and the approach to achieving this. With concrete visualization examples using runZero, you will understand "what you can't see in your own company" and "where you should start," providing hints for your next actions.