Disclosed herein are system, apparatus, article of manufacture, method and/or computer program product embodiments for detection of satellite system anomalies. An embodiment operates by receiving satellite signals from a plurality of sources via at least one satellite system receiver and determining the presence of anomalous satellite system activity by comparing an amount of signal strength drop of each of the satellite signals during a time period to a threat detection threshold and by comparing an amount of consistency of the satellite signals during the time period to the threat detection threshold.