Since its invention, the Internet has brought happiness and profit to our lives. This is true, but on the Internet, strangers can interrogate the Web by being "hacked" and invade or enter our personal world. According to Network World, Web sites are hacked every 5 seconds. Hacking by secret access is taboo operation. During hacking, the hacker stole the user's data and funds. In addition, they may destroy their computers or their critical projects and they establish a strong link between the computer and the user's computer to access the computer at any time.
Currently, the Internet's Internet is relatively safe. Most devices connected to the Internet are built on different platforms and operating systems and use different programming languages so hackers use this technology to compel people or destroy the whole organization I can not do it. It is not realistic to develop malware attacks for each type of IoT device and it is not worthy of cybercriminals. The expanding IoT will need to be integrated with the public cloud. It will allow hackers to access consumer personal data and open technologies for more malicious attacks. For example, you may invalidate your car in the middle of the road, unless the cyber criminal damages the smart car and pays for ransom during driving. They will also destroy the system that supplies water and electricity to your workplace and destroy it.
The IoT chain addresses device security and data security issues. The ITC team believes that security is a cost game. At some point, if the cost is too high, hackers give up. Since control usually concentrates on a single server or cluster, hackers prefer traditional internet systems. Therefore, a hacker can control one or more servers and affect only a relatively large number of connection services. Block chain technology can solve this problem. People often associate block chains with decentralization. Deleting the central management point helps protect connected devices. For example, a user connecting a camera can approve access to a specific mobile phone. Due to the nature of the block chain, camera control is not entrusted to a single server. This decentralization approach may provide strong deterrence to malicious actors and may improve the security of the online environment.