A wearable sensor is an electronic device designed to be worn on the body, such as on the wrist, chest, or clothing. These sensors continuously collect physiological data, including heart rate, temperature, motion, and other health-related metrics. In cybersecurity, wearable sensors pose unique challenges and risks, as the sensitive data they gather can be targeted by attackers. Unauthorized access to this data can lead to privacy breaches or identity theft. Securing wearable sensors involves encryption, secure data transmission, and robust authentication methods to protect user information. As wearable technology becomes more widespread, ensuring their security is increasingly important.