Skyjackers are individuals who unlawfully seize control of an aircraft, typically by threatening the crew and passengers. This act is often motivated by political, ideological, or financial reasons. Skyjacking can lead to hostage situations and significant legal consequences for the perpetrators. The term gained prominence during the late 20th century, particularly in the United States, where several high-profile incidents occurred. Governments and aviation authorities have since implemented strict security measures to prevent such events, including enhanced screening processes and the use of air marshals on flights.