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MATRIX – Ce que nos données Gmail révèlent de notre vie sociale

MATRIX – Ce que nos données Gmail révèlent de notre vie sociale
Que contiennent les métadonnées transmises par Google à la National Security Agency (NSA) américaine ou celles qu’observe en France la Direction générale de la sécurité extérieure (DGSE) ? Les métadonnées sont l’enveloppe d’une donnée, son contenant. Dans le cadre d’une conversation téléphonique, ce seront par exemple les fadettes, les factures détaillées des appels émis et reçus et les numéros contactés, mais pas le contenu de la conversation. L’accès à ces données techniques constitue-t-il de l’espionnage ? Le tout nouvel outil Immersion, développé au Massachusetts Institute of Technology (MIT) par le professeur César Hidalgo et ses étudiants, apporte d’intéressants éléments de réponse à cette question, et montre qu’avec les seules métadonnées, on peut en savoir beaucoup sur une personne, ses fréquentations et ses réseaux. >> Lire la tribune cosignée par César Hidalgo parue dans Le Monde daté du 27 juin : « Il est temps de parler des métadonnées« Signaler ce contenu comme inapproprié

Revealed: how Microsoft handed the NSA access to encrypted messages | World news Microsoft has collaborated closely with US intelligence services to allow users' communications to be intercepted, including helping the National Security Agency to circumvent the company's own encryption, according to top-secret documents obtained by the Guardian. The files provided by Edward Snowden illustrate the scale of co-operation between Silicon Valley and the intelligence agencies over the last three years. They also shed new light on the workings of the top-secret Prism program, which was disclosed by the Guardian and the Washington Post last month. The documents show that: • Microsoft helped the NSA to circumvent its encryption to address concerns that the agency would be unable to intercept web chats on the new Outlook.com portal; • The agency already had pre-encryption stage access to email on Outlook.com, including Hotmail; • Material collected through Prism is routinely shared with the FBI and CIA, with one NSA document describing the program as a "team sport".

NSA slides explain the PRISM data-collection program U.S. intelligence mining data from nine U.S. Internet companies in broad secret program The National Security Agency and the FBI are tapping directly into the central servers of nine leading U.S. Internet companies, extracting audio and video chats, photographs, e-mails, documents, and connection logs that enable analysts to track foreign targets, according to a top-secret document obtained by The Washington Post. The program, code-named PRISM, has not been made public until now. It may be the first of its kind. The NSA prides itself on stealing secrets and breaking codes, and it is accustomed to corporate partnerships that help it divert data traffic or sidestep barriers. Equally unusual is the way the NSA extracts what it wants, according to the document: “Collection directly from the servers of these U.S. London’s Guardian newspaper reported Friday that GCHQ, Britain’s equivalent of the NSA, also has been secretly gathering intelligence from the same internet companies through an operation set up by the NSA. PRISM was launched from the ashes of President George W. Sens.

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