</s>104-1054-10173 2025 RELEASE UNDER THE PRESIDENT JOHN F. KENNEDY ASSASSINATION RECORDS ACT OF 1992 SECRET 1. Attached is Annex A - Statements of Soviet Officials About NOSENKO - which is part of the summary entitled, Conclusions and Comments in the Case of Yuri Ivanovich NOSENKO, (copy number 7) dated 1 October 1968. The aforementioned summary was forwarded for your review on 13 March 1978. 2. Certain portions of Annex A of this study are deleted since it contains information which bears on the security of ongoing, viable CIA operations, or is related thereto. 3. We request return of the study (copy 7) and Annex A when your review has been completed. Attachment: As Stated Above Declassified and Approved for Release by the Central Intelligence Agency Date: 2003 WARNING NOTICE - SENSITIVE INTELLIGENCE SOURCES AND METHODS. INVOLVED E2 IMPDET CL BY 011340 SECRET

Summary  
The documents detail Soviet KGB investigations into Yuri Ivanovich Nosenko, a defector who claimed to have worked for the KGB in counterintelligence roles against U.S. interests. Nosenko’s alleged service included surveillance of American citizens and intelligence operations from January 1962 to January 1964, primarily within the Seventh Department (Counterintelligence Directorate). The KGB assessed his credibility as a defector, noting inconsistencies in his accounts, including a retracted claim about a "recall telegram" from KGB headquarters. His defection in 1964 prompted Soviet efforts to locate him, with officials in Moscow and Geneva expressing concern over his disappearance. Nosenko provided information on KGB structures and operations, which were corroborated by some sources but disputed by others. The documents reference internal KGB personnel conflicts, microphones planted in U.S. embassies, and expulsions of officers linked to Nosenko’s case. Redactions and deletions are noted for security reasons, particularly regarding ongoing CIA operations.  

Key People  
- **Yuri Ivanovich Nosenko**: Defector who allegedly worked in the KGB’s Seventh Department; provided information on Soviet intelligence structures and U.S. targets.  
- **Frippele, Shublin, Slesinger, Kotenko, Tsymbal**: Individuals alleged to have interacted with or been monitored by the KGB as potential agents or contacts of U.S. intelligence agencies.  
- **Petukhov (I.I. PETUKHOV)**: KGB officer involved in managing Nosenko’s case and instructing agents to cease operations.  
- **Grigoryev (G.RIGORYEV)**: KGB officer linked to internal investigations into Nosenko’s activities.  
- **Borisov (P. P.P. BORISOV)**: KGB officer who communicated with defector George Herman Sprecher.  
- **Goltsyn (D.GOLTSYN), Deryabin (D.DERYABIN)**: Defected KGB officers referenced in internal assessments of Nosenko’s espionage activities.  

Key Locations  
- **Soviet Union**: Leningrad, Moscow, Baku, Odessa; central to KGB operations and personnel management.  
- **Geneva**: Site of Nosenko’s defection and interactions with Soviet officials like V.S. Medvedev.  
- **United States**: New York City, San Francisco, Washington D.C., and locations associated with U.S. embassies where microphones were allegedly planted.  

Key Events  
- **Nosenko’s recruitment into the KGB (1962–1964)**: His alleged involvement in surveillance of American citizens and intelligence operations against U.S. interests.  
- **Defection in 1964**: Prompted Soviet efforts to locate him, with officials expressing concern over his disappearance.  
- **KGB internal investigations**: Assessments of damage from Nosenko’s defection, including expulsions of officers like Grigoryev and Bannikov.  
- **Microphone operations**: KGB’s use of microphones in U.S. embassies, with Nosenko implicated in their placement.  
- **Retraction of recall telegram claim (October 1966)**: Nosenko stated he fabricated the claim to justify his abrupt departure from Geneva.  

Key Organizations  
- **KGB (Komitet Gosudarstvennoy Bezopasnosti)**: Central to all operations, including espionage, internal investigations, and personnel management.  
- **CIA (Central Intelligence Agency)**: Mentioned as a potential recipient of information from Nosenko regarding the "recall telegram."  
- **FBI (Federal Bureau of Investigation)**: Referenced in KGB suspicions about individuals like Slesinger as potential agents or contacts.  
- **GRU (Glavnoye Razvedyvatel’noye Upravleniye)**: Soviet Army Intelligence, with Nosenko allegedly working in the Information Department before transferring to the KGB.  
- **CPSU (Communist Party of the Soviet Union)**: Involved in disciplinary actions against KGB officers linked to Nosenko’s case.

JFK Declassified Files

104-10534-10173.pdf

Document Summary

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