Description: Proactive security in the context of the Internet of Things (IoT) refers to a preventive approach that seeks to identify and mitigate risks before they materialize into security incidents. This concept involves implementing anticipatory security measures, such as vulnerability assessments, constant monitoring of devices and networks, and regular updates of software and firmware. Unlike reactive security, which responds to incidents that have already occurred, proactive security focuses on prevention, which is crucial in an environment where IoT devices are in constant communication and can be easy targets for attackers. The main characteristics of proactive security include identifying potential threats, ongoing user training on good security practices, and creating robust security policies that adapt to the evolution of technologies and the tactics of cybercriminals. This approach not only protects individual devices but also ensures the integrity of the networks and systems in which they operate, contributing to a safer and more reliable IoT ecosystem.