The Great Seal bug, generally known as "The Matter" – one of the very first passive covert listening devices; 1st utilized by the USSR for spying (1945 or previously); it is taken into account a predecessor of RFID technology[52] The only real scenario I've read wherever it was not upheld https://charlieezrlc.xzblogs.com/78722750/detailed-notes-on-mezzanine-gate