In cybersecurity, a 'frame' refers to a single still image in a sequence of images that, when displayed rapidly, creates the illusion of motion in videos or games. Frames are crucial in the rendering and transmission of multimedia content. In network security, 'frame' can also describe a data packet at the data link layer, encapsulating information for transmission. Attackers may exploit frame manipulation techniques, such as frame injection or spoofing, to intercept or alter data during transmission, making frame analysis vital for detecting and preventing cyber threats.