Security cameras, also known as surveillance cameras, are devices used to monitor and record activity in a specific area for security purposes. They come in various shapes, sizes, and types, including indoor and outdoor cameras, wired and wireless cameras, and analog and digital cameras. Some security cameras have features such as motion detection, night vision, and remote access, allowing users to view and control the cameras from a remote location. While security cameras provide a visual record of activities and can be used to identify suspects and gather evidence, they also raise privacy concerns and must be used responsibly and in compliance with local privacy laws and regulations.