The document discusses Internet of Things (IoT) security. It defines IoT as physical objects containing technology to communicate and interact with their environment. The economic impact of IoT is estimated to be $6.2 trillion annually by 2025. IoT security faces challenges as it cuts across IT, operational technology, and telecommunications networks. The document proposes an approach using Guardtime's Keyless Signature Infrastructure (KSI) to securely integrate IoT across systems by verifying data integrity and authenticating devices. KSI would address constraints of real-time networks and help mitigate security risks like sensor network attacks.