The Security Service of Ukraine has issued a statement confirming the discovery of a recording device in a location potentially used by Commander-in-Chief Valerii Zaluzhnyi. According to Ukrainska Pravda, the device was uncovered during a routine inspection of new premises intended for use by the commander-in-chief.
https://en.wikipedia.org/wiki/The_Thing_(listening_device)
“The Thing, also known as the Great Seal bug, was one of the first covert listening devices (or “bugs”) to use passive techniques to transmit an audio signal. It was concealed inside a gift given by the Soviet Union to W. Averell Harriman, the United States Ambassador to the Soviet Union, on August 4, 1945. Because it was passive, needing electromagnetic energy from an outside source to become energized and active, it is considered a predecessor of radio-frequency identification (RFID) technology.”