The Russian government has deliberately set false GPS signals affecting thousands of ships and airplanes moving through the Black Sea near Ukraine. This is according to the Centre for Advanced Defense, a security think tank, which reports that Russia has hacked the global navigation satellite system (GNSS) on a mass scale.
The C4AD study found that 1,311 civilian ships were affected by the false GNSS signals across nearly 10,000 incidents.
Analysis by the cyber security monitoring service Digital Shadows noted that:
The geographical placement of the spoofing incidents closely aligns with places where Vladimir Putin was making overseas and domestic visits, suggesting that Russian forces had developed mobile GNSS jamming units to provide protection for the Russian president. The incidents also align with the locations of Russian military and government resources.