[1]https://www.the-sun.com/news/4993869/ukraine-publishes-names-numbers-spies-in
vasion/

"Incredibly the mobile phone numbers and car licence plates are revealed by the
Ukrainians.
"Their work addresses are revealed, with many of them based at the FSB’s Lubyank
a headquarters in Moscow.
"The infamous building was previously the headquarters of the Soviet KGB, the pr
edecessor of the FSB, and its name continues to strike fear into Russians.

   "The leak will be especially galling to Putin has be is a former KGB
   agent and retains close ties to the FSB.

   "The leak comes after the Ukraine’s spies released an intercepted call
   between two FSB agents discussing the death of Major General Vitaly
   Gerasimov.

   "They were able to listen to the agents because Russian took out their
   own secure communications systems by destroying the 3G towers they
   depend on.

   "The move by Kyiv’s spies follows the blunders made in the run up to
   the invasion, when they failed to recognise the resistance Russian
   forces would face in Ukraine.

References

   1. https://www.the-sun.com/news/4993869/ukraine-publishes-names-numbers-spies-invasion/