Microchip announced a solution to this problem with the integration of its BlueSky technology signal-anomaly detection software into the SyncServer S600 Series network time server and instruments. Microchip is the first to fully integrate GPS jamming and spoofing detection and protection, in combination with local Radio Frequency (RF) data logging and analysis, inside a time server. This protects ongoing timing outputs while ensuring only minimal, predictable timing degradation to vital network and business operations in applications ranging from banking and stock trading to electric utilities.
Source: https://www.helpnetsecurity.com/2021/03/24/microchip-bluesky-syncserver-s600/