Security cameras, also known as closed-circuit television (CCTV), are surveillance systems used to monitor and record activities in specific areas. They enhance security by deterring potential threats and providing evidence in case of incidents. These cameras use sensors to capture video footage, which can be stored locally or in the cloud. Modern systems often feature advanced capabilities such as motion detection, night vision, and remote access via smartphones or computers. While they contribute to public safety and property protection, concerns about privacy and ethical use of surveillance technology continue to be debated in society.