Protective measures are actions taken to safeguard individuals, communities, or environments from potential harm or danger. These measures can include physical barriers, such as fences or walls, as well as policies and procedures designed to reduce risks, like emergency response plans or safety training. In various contexts, protective measures can also involve the use of technology, such as surveillance systems or cybersecurity protocols, to prevent unauthorized access or attacks. Additionally, public health initiatives, like vaccination programs, serve as protective measures to enhance community immunity against diseases, ensuring overall safety and well-being.