Processes and method for safe of use, monitoring and management of device accounts in terminal manner

A method of using a decentralized network to connect and manage a device in a device network, wherein the device network has multiple devices including said device;

• the method comprising the steps of:
• applying for a decentralized identity in the decentralized network;
• binding the decentralized identity with a digital identity which is allowed to connect to the device, and saving a correspondingly generated binding information in the decentralized network, wherein the digital identity has an authentication information;
• authorizing an account applicable for the device which the digital identity is allowed to connect to, and saving a correspondingly generated authorization information in the decentralized network;
• updating the authentication information corresponding to the digital identity concerning the device and the account through a randomizing rule when a condition is met, and saving the updated authentication information in the decentralized network;
• and
• retrieving the updated authentication information from the decentralized network through a terminal device, and using the authentication information to authenticate while connecting to the device, wherein the terminal device has an identity information bound with the decentralized identity, and the identity information is generated after the terminal device accomplishing an identity authentication action.