Abstract The opportunities offered by the smart city and the smart home to create livelier cities and homes in cities of increasing populations. [1] Meanwhile, there may be more problems which the average user does not yet think about. Focusing on these issues will be of utmost importance for information security and IT security, as the development of technology may not be able to keep up with a society such technologies are used in. On a theoretical and practical level, I examine an intelligent heating system for IT vulnerability, as well as some cases of attacks against IoT in recent years.