Description: Fog computing security refers to the measures and protocols specifically designed to protect data and applications in fog computing environments. This approach focuses on safeguarding information processed and stored in distributed nodes that are closer to the end user than traditional cloud computing. Fog computing allows for lower latency and more efficient processing, but it also introduces new security challenges. Key features of fog computing security include robust authentication, data encryption both in transit and at rest, as well as identity and access management. Additionally, constant monitoring is required to detect and respond to threats in real-time, as fog environments are more vulnerable to attacks due to their distributed nature. The relevance of this security lies in the increasing adoption of IoT devices and the need to process data locally to enhance efficiency and speed. Therefore, fog computing security not only protects data integrity but also ensures user trust in applications utilizing this technology.