AM modulation, or Amplitude Modulation, is a technique used to encode information onto a carrier wave by varying its amplitude. Widely used in radio broadcasting, AM modulation allows audio or data signals to be transmitted over long distances. The information signal modifies the strength (amplitude) of the carrier wave while its frequency remains constant. Although not directly a cybersecurity term, understanding AM modulation is important in the context of securing wireless communications, as attackers may exploit vulnerabilities in signal transmission. Modern digital systems often use more secure modulation methods, but knowledge of AM remains relevant for legacy systems and certain attack vectors.