The Internet of Things (IoT) connects huge amount of devices and takes us into a whole new world with all the things perceptive, connected and intelligent, thus greatly improves the social operation efficiency and makes people’s life convenient. IoT has a wide range of applications, including smart home, intelligent building, smart health-care,logistics, transportation, police affairs, etc. As predicted by Gartner, the number of world IoT devices will increase to 20.8 billion by 2020, and the combined growth will up to 34%. IoT will infiltrate to all aspects of people’s lives and reach a wide range of industries.

From the security threats faced by the Internet of Things, this white paper mainly introduces the network security architecture, security technology and security strategy adopted by Dahua,including Digest Authentication, Data Package Filter, Data Access Strategy, Session Security, Network Security and so on.