Drones are increasingly being used for security purposes. Surveillance using drones involves using a drone equipped with a high-quality camera to capture images or video of an area. The drone can be equipped with a variety of camera types, including 4K video cameras, night vision cameras, and thermal cameras. These cameras allow the drone to capture detailed images or video of the area, even in challenging lighting conditions or at night. The images or video can then be analyzed by security personnel to identify any potential threats or unusual activity.