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United States diplomatic cables leak

2010–2011 release of 251,287 diplomatic cables

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On 30 July 2013, Chelsea Manning was convicted for theft of the cables and violations of the Espionage Act in a court martial proceeding and sentenced to thirty-five years imprisonment. She was released on 17 May 2017, after seven years total confinement, after her sentence had been commuted by President Barack Obama earlier that year.

Sequence of leaks

The first document, the so-called Reykjavik 13 cable, was released by WikiLeaks on 18 February 2010, and was followed by the release of State Department profiles of Icelandic politicians a month later. Later that year, Julian Assange, WikiLeaks' editor-in-chief, reached an agreement with media partners in Europe and the United States to publish the rest of the cables in redacted form, removing the names of sources and others in vulnerable positions. On 28 November, the first 220 cables were published under this agreement by El País (Spain), Der Spiegel (Germany), Le Monde (France), The Guardian (United Kingdom), and The New York Times (United States). WikiLeaks had planned to release the rest over several months; 2,017 had been published as of 11 January 2011.

The remaining cables were published in September 2011 after a series of events compromised the security of a WikiLeaks file containing the cables. This included WikiLeaks volunteers placing an encrypted file containing all WikiLeaks data online as "insurance" in July 2010, in case something happened to the organization. In February 2011 David Leigh of The Guardian published the encryption passphrase in a book; he had received it from Assange so he could access a copy of the Cablegate file, and believed the passphrase was a temporary one, unique to that file. In August 2011, German weekly Der Freitag published some of these details, enabling others to piece the information together and decrypt the Cablegate files. The cables were then available online, fully unredacted. In response, WikiLeaks decided on 1 September 2011 to publish all 251,287 unedited documents.

The publication of the cables was the third in a series of U.S. classified document leaks distributed by WikiLeaks in 2010, following the Afghan War documents leak in July, and the Iraq War documents leak in October. Over 130,000 of the cables are unclassified, some 100,000 are labeled "confidential", around 15,000 have the higher classification "secret", and none are classified as "top secret" on the classification scale.

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