The electronic interception work is closely linked to Security agents, the living microphones. Usually, they preceded the electronic microphones with information, and in many cases, they carried the bugs in talks with potential to be arrested.
A statistic presented in one of the museum rooms shows about the four categories of collaborators, the number for each category over the years, etc. Related to this statistic, visitors will be acquainted with declassified documents for some collaborators under pseudonyms: “Big cupboard”, “Artist”, “Mountain”. Their respective files indicate the recruitment methods of the agents, and show that they have often been carriers of bugs in provocative conversations.