Wikipedia

Plausible deniability

Plausible deniabilityis the ability of people, typically senior officials in a formal or informalchain of command,todenyknowledge of or responsibility for actions committed by or on behalf of members of their organizational hierarchy. They may do so because of a lack of evidence that can confirm their participation, even if they were personally involved in or at leastwillfully ignorantof the actions. If illegal or otherwise disreputable and unpopular activities become public, high-ranking officials may deny any awareness of such acts to insulate themselves andshift the blameonto the agents who carried out the acts, as they are confident that their doubters will be unable to prove otherwise. The lack of evidence to the contrary ostensibly makes the denial plausible (credible), but sometimes, it makes any accusations onlyunactionable.

The term typically implies forethought, such as intentionally setting up the conditions for the plausible avoidance of responsibility for one's future actions or knowledge. In some organizations, legal doctrines such ascommand responsibilityexist to hold major parties responsible for the actions of subordinates who are involved in actions and nullify any legal protection that their denial of involvement would carry.

Inpoliticsand especiallyespionage,deniability refers to the ability of a powerful player or intelligence agency topass the buckand to avoidblowbackby secretly arranging for an action to be taken on its behalf by a third party that is ostensibly unconnected with the major player. In political campaigns, plausible deniability enables candidates to stay clean and denounce third-party advertisements that use unethical approaches or potentially libelous innuendo.

Although plausible deniability has existed throughout history, the term was coined by theCIAin the early 1960s to describe the withholding of information from senior officials to protect them from repercussions if illegal or unpopular activities became public knowledge.[1]

Overview

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Arguably, the key concept of plausible deniability is plausibility. It is relatively easy for a government official to issue a blanket denial of an action, and it is possible to destroy or cover up evidence after the fact, that might be sufficient to avoid a criminal prosecution, for instance. However, the public might well disbelieve the denial, particularly if there is strong circumstantial evidence or if the action is believed to be so unlikely that the only logical explanation is that the denial is false.[citation needed]

The concept is even more important in espionage. Intelligence may come from many sources, includinghuman sources.The exposure of information to which only a few people are privileged may directly implicate some of the people in the disclosure. An example is if an official is traveling secretly, and only one aide knows the specific travel plans. If that official is assassinated during his travels, and the circumstances of the assassination strongly suggest that the assassin had foreknowledge of the official's travel plans, the probable conclusion is that his aide has betrayed the official. There may be no direct evidence linking the aide to the assassin, but collaboration can be inferred from the facts alone, thus making the aide's denial implausible.

History

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The term's roots go back to US PresidentHarry Truman'sNational Security CouncilPaper 10/2 of June 18, 1948, which defined "covert operations" as "all activities (except as noted herein) which are conducted or sponsored by this Government against hostile foreign states or groups or in support of friendly foreign states or groups but which are so planned and executed that any US Government responsibility for them is not evident to unauthorized persons and that if uncovered the US Government can plausibly disclaim any responsibility for them."[2]During theEisenhower administration,NSC 10/2 was incorporated into the more-specific NSC 5412/2 "Covert Operations."[3]NSC 5412 was declassified in 1977 and is located at the National Archives.[4]The expression "plausibly deniable" was first used publicly byCentral Intelligence Agency(CIA) DirectorAllen Dulles.[5]The idea, on the other hand, is considerably older. For example, in the 19th century,Charles Babbagedescribed the importance of having "a few simply honest men" on a committee who could be temporarily removed from the deliberations when "a peculiarly delicate question arises" so that one of them could "declare truly, if necessary, that he never was present at any meeting at which even a questionable course had been proposed."[6]

Church Committee

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AU.S. Senatecommittee, theChurch Committee,in 1974–1975 conducted an investigation of the intelligence agencies. In the course of the investigation, it was revealed that theCIA,going back to theKennedy administration,had plotted the assassination of a number of foreign leaders, includingCuba'sFidel Castro,but the president himself, who clearly supported such actions, was not to be directly involved so that he could deny knowledge of it. That was given the term "plausible denial."[7]

Non-attribution to the United States for covert operations was the original and principal purpose of the so-called doctrine of "plausible denial." Evidence before the Committee clearly demonstrates that this concept, designed to protect the United States and its operatives from the consequences of disclosures, has been expanded to mask decisions of the president and his senior staff members.

— Church Committee[8]

Plausible denial involves the creation of power structures and chains of command loose and informal enough to be denied if necessary. The idea was that the CIA and later other bodies could be given controversial instructions by powerful figures, including thepresidenthimself, but that the existence and true source of those instructions could be denied if necessary if, for example, an operation went disastrously wrong and it was necessary for the administration to disclaim responsibility.

Later legislative barriers

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TheHughes–Ryan Actof 1974 sought to put an end to plausible denial by requiring a presidential finding for each operation to be important to national security, and theIntelligence Oversight Actof 1980 required for Congress to be notified of allcovert operations.Both laws, however, are full of enough vague terms and escape hatches to allow the executive branch to thwart their authors' intentions, as was shown by theIran–Contra affair.Indeed, the members of Congress are in a dilemma since when they are informed, they are in no position to stop the action, unless they leak its existence and thereby foreclose the option of covertness.[9]

Media reports

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The (Church Committee) conceded that to provide the United States with "plausible denial" in the event that the anti-Castro plots were discovered, Presidential authorization might have been subsequently "obscured". (The Church Committee) also declared that, whatever the extent of the knowledge, Presidents Eisenhower, Kennedy and Johnson should bear the "ultimate responsibility" for the actions of their subordinates.

— John M. Crewdson,The New York Times[10]

CIA officials deliberately usedAesopian language[11]in talking to the President and others outside the agency. (Richard Helms) testified that he did not want to "embarrass a President" or sit around an official table talking about "killing or murdering." The report found this "circumlocution"[12]reprehensible, saying: "Failing to call dirty business by its rightful name may have increased the risk of dirty business being done." The committee also suggested that the system of command and control may have been deliberately ambiguous, to give Presidents a chance for "plausible denial."

— Anthony Lewis,The New York Times[13]

What made the responsibility difficult to pin down in retrospect was a sophisticated system of institutionalized vagueness and circumlocution whereby no official - and particularly a President - had to officially endorse questionable activities. Unsavory orders were rarely committed to paper and what record the committee found was shot through with references to "removal," "the magic button"[14]and "the resort beyond the last resort." Thus the agency might at times have misread instructions from on high, but it seemed more often to be easing the burden of presidents who knew there were things they didn't want to know. As former CIA director Richard Helms told the committee: "The difficulty with this kind of thing, as you gentlemen are all painfully aware, is that nobody wants to embarrass a President of the United States."

— Newsweek[15]

Iran–Contra affair

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In his testimony to the congressional committee studying theIran–Contra affair,Vice AdmiralJohn Poindexterstated: "I made a deliberate decision not to ask the President, so that I could insulate him from the decision and provide some future deniability for the President if it ever leaked out."[16]

Declassified government documents

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  • A telegram from the Ambassador in VietnamHenry Cabot Lodge Jr.,to Special Assistant for National Security AffairsMcGeorge Bundyon US options with respect to a possible coup, mentions plausible denial.[17][18]
  • CIA and White House documents on covert political intervention in the 1964 Chilean election have been declassified. The CIA's Chief of Western Hemisphere Division, J.C. King, recommended for funds for the campaign to "be provided in a fashion causing (Eduardo Frei Montalvapresident of Chile) to infer United States origin of funds and yet permitting plausible denial. "[19]
  • Training files of the CIA's covert "Operation PBSuccess"for the 1954 coup in Guatemala describe plausible deniability. According to theNational Security Archive:"Among the documents found in the training files of Operation PBSuccess and declassified by the Agency is a CIA document titled 'A Study of Assassination.' A how-to guide book in the art of political killing, the 19-page manual offers detailed descriptions of the procedures, instruments, and implementation of assassination." The manual states that to provide plausible denial, "no assassination instructions should ever be written or recorded."[20]

Soviet operations

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In the 1980s, the SovietKGBranOPERATION INFEKTION(also called "OPERATION DENVER" ), which utilised the East GermanStasiand Soviet-affiliated press to spread the idea that HIV/AIDS was an engineered bioweapon. The Stasi acquired plausible deniability on the operation by covertly supporting biologistJakob Segal,whose stories were picked up by international press, including "numerous bourgeois newspapers" such as theSunday Express.Publications in third-party countries were then cited as the originators of the claims. Meanwhile, Soviet intelligence obtained plausible deniability by utilising the German Stasi in the disinformation operation.[21]

Little green men and Wagner Group

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In 2014, "Little green men"—troops without insignia carrying modern Russian military equipment—emerged at the start of theRusso-Ukrainian War,whichThe Moscow Timesdescribed as a tactic of plausible deniability.[22][23]

TheWagner Group,a Russianprivate military company,has been described as an attempt at plausible deniability for Kremlin-backed interventions in Ukraine, Syria, and in various interventions in Africa.[24][25][23][26]

Flaws

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  • It is an open door to the abuse of authority by requiring that the parties in question to be said to be able to have acted independently, which, in the end, is tantamount to giving them license to act independently.[27]
  • The denials are sometimes seen as plausible but sometimes seen through by both the media and the populace.[28]
  • Plausible deniability increases the risk of misunderstanding between senior officials and their employees.[29]

Other examples

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Another example of plausible deniability is someone who actively avoids gaining certain knowledge of facts because it benefits that person not to know.

As an example, alawyermay suspect that facts exist that would hurt his case but decide not to investigate the issue because if he has actual knowledge, the rules of ethics might require him to reveal the facts to the opposing side.

Council on Foreign Relations

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...the U.S. government may at times require a certain deniability. Private activities can provide that deniability.

— Council on Foreign Relations,Finding America's Voice: A Strategy for Reinvigorating U.S. Public Diplomacy[30][page needed]

Use in computer networks

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In computer networks, plausible deniability often refers to a situation in which people can deny transmitting a file, even when it is proven to come from their computer.

That is sometimes done by setting the computer to relay certain types of broadcasts automatically in such a way that the original transmitter of a file is indistinguishable from those who are merely relaying it. In that way, those who first transmitted the file can claim that their computer had merely relayed it from elsewhere. This principle is used in theopentrackerbittorrentimplementation by including random IP addresses in peer lists.

In encrypted messaging protocols, such asbitmessage,every user on the network keeps a copy of every message, but is only able to decrypt their own and that can only be done by trying to decrypt every single message. Using this approach it is impossible to determine who sent a message to whom without being able to decrypt it. As everyone receives everything and the outcome of the decryption process is kept private.

It can also be done by aVPNif the host is not known.[dubious–discuss]

In any case, that claim cannot be disproven without a complete decrypted log of all network connections.

Freenet file sharing

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TheFreenetfile sharingnetwork is another application of the idea by obfuscating data sources and flows to protect operators and users of the network by preventing them and, by extension, observers such ascensorsfrom knowing where data comes from and where it is stored.

Use in cryptography

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Incryptography,deniable encryptionmay be used to describesteganographic techniquesin which the very existence of an encrypted file or message is deniable in the sense that an adversary cannot prove that an encrypted message exists. In that case, the system is said to be "fully undetectable".[citation needed]

Some systems take this further, such asMaruTukku,FreeOTFEand (to a much lesser extent)TrueCryptandVeraCrypt,which nest encrypted data. The owner of the encrypted data may reveal one or more keys to decrypt certain information from it, and then deny that more keys exist, a statement which cannot be disproven without knowledge of all encryption keys involved. The existence of "hidden" data within the overtly encrypted data is thendeniablein the sense that it cannot be proven to exist.

“Trepidation of Relationship”[31]and“Trepidation of Memory”[32]are two further cryptogaphical concepts to discuss plausible deniability, as also compared in a Youtube-Audio-Podcast.[33]

  • "Trepidation of Memory “refers to the temporal decoupling ofkey pairs.In the book “Super Secreto”[34]by Theo Tenzer, the developer Textbrowser's idea for the Spot-On Encryption Suite application describes how the assignment of public and private keys can become blurred over time. The use ofephemeral keys,which only exist temporarily, makes thetraceabilityof communication more difficult. The collision of two asteroids is used a[s a figurative analogy: After the collision, the two original objects are no longer identifiable as they have disintegrated into individual parts and are moving away from each other. The new paradigm is to separate public and private keys again after they have been used, in the case of asymmetric encryption, or to remove the temporary, ephemeral key from the content in the case of symmetric encryption.
  • "Trepidation of Relationship”builds on this concept and refers to the relationships between users in a network. The use of human proxies, i.e. friends in the messenger's friends list who forward messages on behalf of others, makes it more difficult to *identify the actual sender*. This innovative concept has been implemented in the messenger Spot-On Encrysption Suite by the developer Textbrowser and then described in the book Human Proxies by Uni Nurf.[35]Human Proxies offer new directions to end-to-end encryption: End-A-to-End-Z encryption must be rethought when it turns out to be an End-B-to-End-Z encryption. Since thekey exchangewith the proxy may have taken place in the past, the relationship may not be recognizable to external analysts if a user uses an old friend who has not been contacted or chatted with for a long time as a human proxy. The construct of the *Inner Envelope* behind the Human Proxy function also creates new cryptographic challenges, provides plausible deniability to included nodes, and offers new perspectives in encryption, its analysis and decryption: As all messages in the network are encrypted, end-to-end encryption is new defined and gets with Human Proxies a potential second and plausible deniable start point.

These cryptographic concepts serve to protectprivacyand increasesecurityinnetworks.They makemass surveillancemore difficult and enable plausible deniability. Both concepts can be summarized as follows:

  • Trepidation of Memory:Makes it difficult to trace key pairs back in time.
  • Trepidation of Relationship:Makes it difficult to identify communication relationships in a network.

Programming

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TheUnderhanded C Contestis an annual programming contest involving the creation of carefully crafted defects, which have to be both very hard to find and plausibly deniable as mistakes once found.

See also

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References

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  1. ^"Plausible Deniability Definition, Examples, & Laws".The Law Dictionary.Retrieved2022-03-24.
  2. ^Office of the Historian, Department of State.National Security Council Directive on Office of Special Projects (NSC 10/2),Washington, June 18, 1948.
  3. ^Office of the Historian, Department of State.Covert Operations (NSC 5412/2),Washington, undated.
  4. ^Records of the National Security Council (NSC), Record Group 273.
  5. ^Carlisle, Rodney P (2003).The Complete Idiot's Guide to Spies and Espionage.Alpha Books. p. 213.ISBN0-02-864418-2.
  6. ^Babbage, Charles (1864).Passages from the Life of a Philosopher.Longman, Green, Longman, Roberts, & Green. pp. 261–262.
  7. ^Zinn, Howard (1991).Declarations of Independence: Cross Examining American Ideology.Perennial. p. 16.ISBN0-06-092108-0.
  8. ^Church CommitteeReports United States Senate Select Committee to Study Governmental Operations with Respect to Intelligence Activities, Senate, Nov. 20, 1975, II. Section B Covert Action as a Vehicle for Foreign Policy Implementation. p. 11
  9. ^New York TimesUnder Cover, or Out of Control? November 29, 1987 Section 7; p. 3, Column 1(Book Review of 2 books: The Perfect Failure and Covert Action)
  10. ^Crewdson, John M. (1975-11-21)."Castro Plot Study Finds No Role by White House".The New York Times.ISSN0362-4331.Retrieved2020-06-07.
  11. ^Definition: Using or having ambiguous or allegorical meanings, especially to elude political censorship: "They could express their views only in a diluted form, resorting to Aesopian hints and allusions"(Isaac Deutscher).
  12. ^Definition: The use of unnecessarily wordy and indirect language, Evasion in speech or writing, An indirect way of expressing something
  13. ^Lewis, Anthony (1975-11-23)."How Fantasies Became Policy, Out of Control".The New York Times.ISSN0362-4331.Retrieved2020-06-07.
  14. ^Definition of the "Magic Button" from theLos Angeles TimesArticle: The Search for a 'Magic Button' In American Foreign Policy; October 18, 1987;(Review by David Aaron of the book Covert Action)I recall during my days as a Senate investigator finding a piece of yellow note pad with jottings from a meeting with White House officials during the Kennedy Administration that discussed an "Executive Action" or, in plain English, an assassination capability. The notes referred to it as the "magic button."
  15. ^NewsweekThe CIA'S Hit List, December 1, 1975, p. 28
  16. ^Jamieson, Kathleen Hall (1993).Dirty Politics: Deception, Distraction, and Democracy.Oxford University Press US. p. 86.ISBN0-19-508553-1.
  17. ^"Cable from Ambassador Lodge to McGeorge Bundy on US Options With Respect to a Possible Coup, 25 October 1963".mtholyoke.edu.Archived fromthe originalon 2021-03-08.Retrieved2020-06-07.
  18. ^Department Of State: Office of Electronic Information, Bureau of Public Affairs."Documents 209-244".2001-2009.state.gov.p. Telegram 216.Retrieved2020-06-07.
  19. ^"Chile 1964: CIA covert support in Frei election detailed; operational and policy records released for first time".National Security Archive.Archived fromthe originalon 2014-06-17.Retrieved2006-07-08.
  20. ^"CIA and Assassinations: The Guatemala 1954 Documents".National Security Archive.Retrieved2006-07-08.
  21. ^Selvage, Douglas (2021-08-09)."Operation" Denver ": The East German Ministry for State Security and the KGB's AIDS Disinformation Campaign, 1986–1989 (Part 2)".Journal of Cold War Studies.23(3): 4–80.doi:10.1162/jcws_a_01024.ISSN1520-3972.
  22. ^Person, Robert (2015-10-26)."Baltic Russians Aren't Pawns in Strategic Game".The Moscow Times.Retrieved2021-09-28.
  23. ^ab"Russian Private Military Companies in Syria and Beyond".csis.org.Retrieved2021-09-28.
  24. ^Mackinnon, Amy."Russia's Wagner Group Doesn't Actually Exist".Foreign Policy.Retrieved2021-09-18.
  25. ^"The Wagner Group: Untangling the Purpose behind a Russian Power Tool".cisac.fsi.stanford.edu.Retrieved2021-09-18.
  26. ^Hussain, Murtaza (February 2, 2023)."The Grisly Cult of the Wagner Group's Sledgehammer".The Intercept.
  27. ^Church CommitteeII. Section B Page 11; IV. Findings and Conclusions Section C Subsection 1 Page 261:
    An additional possibility is that the President may, in fact, not be fully and accurately informed about a sensitive operation because he failed to receive the "circumlocutious" message.... The Committee finds that the system of Executive command and control was so inherently ambiguous that it is difficult to be certain at what level assassination activity was known and authorized. This creates the disturbing prospect that assassination activity might have been undertaken by officials of the United States Government without its having been incontrovertibly clear that there was explicit authorization from the President of the United States.
  28. ^Church CommitteeIV. Findings and Conclusions Section C Subsection 5 Page 277:
    It was naive for policymakers to assume that sponsorship of actions as big as the [Bay of Pigs] invasion could be concealed. The Committee's investigation of assassination and the public disclosures which preceded the inquiry demonstrate that when the United States resorted to cloak-and-dagger tactics, its hand was ultimately exposed.
  29. ^Church CommitteeIV. Section C Subsection 5 Page 277:
    "Plausible denial" increases the risk of misunderstanding. Subordinate officials should describe their proposals in clear, precise, and brutally frank language; superiors are entitled to, and should demand, no less
  30. ^Peterson, Peter G.; Bloomgarden, Kathy F. (Kathy Finn); Grunwald, Henry A. (Henry Anatole); Morey, David E.; Telhami, Shibley; Sieg, Jennifer (2003).Finding America's voice: a strategy for reinvigorating U.S. public diplomacy: report of an independent task force sponsored by the Council on Foreign Relations.New York: Council on Foreign Relations Press.ISBN0-87609-321-7.OCLC53166707.{{cite book}}:CS1 maint: multiple names: authors list (link)
  31. ^Nurf, Uni (2023).Human Proxies.BOD Publishing. p. 66ff.ISBN978-3759705044.
  32. ^Tenzer, Theo (2022).Super Secreto - The Third Epoch of Cryptography.BOD Publishing. p. 244ff.ISBN9783755761174.
  33. ^Youtube (October 24, 2024).Cryptography: Trepidation of Memory (with Fiasco Keys) & Trepidation of Relationship (with Human Proxy)(Audio-Podcast). Youtube.
  34. ^Tenzer, Theo (2022).Super Secreto - The Third Epoch of Cryptography.BOD Publishing. p. 244ff.ISBN9783755761174.
  35. ^Nurf, Uni (2023).Human Proxies.BOD Publishing. p. 66ff.ISBN978-3759705044.

Further reading

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  • Campbell, Bruce B. (2000).Death Squads in Global Perspective: Murder With Deniability.Palgrave Macmillan.ISBN0-312-21365-4.
  • Shulsky, Abram N; Gary James Schmitt (2002).Silent Warfare: Understanding the World of Intelligence.Potomac Books. pp. 93–94, 130–132.ISBN1-57488-345-3.
  • Treverton, Gregory F. (1988).Covert Action: The CIA and the Limits of American Intervention in the Postwar World.Palgrave Macmillan.ISBN1-85043-089-6.
  • Poznansky, Michael (2 March 2020)."Revisiting plausible deniability".Journal of Strategic Studies.45(4): 511–533.doi:10.1080/01402390.2020.1734570.S2CID216460728.
  • Vukušić, Iva (2019). "Plausible Deniability: The Challenges in Prosecuting Paramilitary Violence in the Former Yugoslavia". In Smeulers, Alette; Weerdesteijn, Maartje; Hola, Barbora (eds.).Perpetrators of International Crimes: Theories, Methods, and Evidence.Oxford University Press.ISBN978-0-19-882999-7.
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