Pegasus is spyware created by the Israeli company NSO Group to track targets by accessing their device's data, apps, camera, and microphone. It can be sent remotely to infect phones. While NSO claims it is only for authorized governments to use against criminals and terrorists, the recent Pegasus Project revealed its use against journalists, activists, and politicians in multiple countries. The spyware raises concerns over privacy violations if used improperly by governments or other groups.