Newly published NSA documents show agency could grab all Skype traffic

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Ars Technica – by Sean Gallagher

A National Security Agency document published this week by the German news magazine Der Spiegel from the trove provided by former NSA contractor Edward Snowden shows that the agency had full access to voice, video, text messaging, and file sharing from targeted individuals over Microsoft’s Skype service. The access, mandated by a Foreign Intelligence Surveillance Court warrant, was part of the NSA’s PRISM program and allowed “sustained Skype collection” in real time from specific users identified by their Skype user names.  

The nature of the Skype data collection was spelled out in an NSA document dated August 2012 entitled “User’s Guide for PRISM Skype Collection.” The document details how to “task” the capture of voice communications from Skype by NSA’s NUCLEON system, which allows for text searches against captured voice communications. It also discusses how to find text chat and other data sent between clients in NSA’s PINWALE “digital network intelligence” database.

The full capture of voice traffic began in February of 2011 for “Skype in” and “Skype out” calls—calls between a Skype user and a land line or cellphone through a gateway to the public switched telephone network (PSTN), captured through warranted taps into Microsoft’s gateways. But in July of 2011, the NSA added the capability of capturing peer-to-peer Skype communications—meaning that the NSA gained the ability to capture peer-to-peer traffic and decrypt it using keys provided by Microsoft through the PRISM warrant request.

The NSA was then able to “task” any Skype traffic that passed over networks it monitored or by exploitation of a targeted user’s system. “NSA receives Skype collection via prism when one of the peers is a (FISA Amendments Act Section 702) tasked target,” the Skype collection guide stated. Because Skype has no central servers, the guide explained, for multiparty calls, “Skype creates a mesh-network, where users are connected together through multiple peer-to-peer links. Instant Messages sent to this group of meshed participants can be routed through any participant.” If any participant in a chat was monitored, the NSA could capture all of the IM traffic in the shared chat.

Initially, NSA analysts had to piece together voice communications between peers because they were carried over separate streams, but a service added by August of 2012 by the NSA’s Cryptanalysis and Exploitation Services (CES) automatically stitched both audio streams of a conversation together. As of 2012, however, analysts still had to search for associated video from a call session to match it up with audio in a tool called the Digital Network Intelligence Presenter (DNIP).

http://arstechnica.com/tech-policy/2014/12/newly-published-nsa-documents-show-agency-could-grab-all-skype-traffic/

3 thoughts on “Newly published NSA documents show agency could grab all Skype traffic

  1. The Trenches staff should be given the Medal of Honor for the shit they have to go through. No f,cking piece of mind whatsoever,or any privacy whatsoever. Disgusting!!!

  2. THINK: If Snowden were a “whistle blower” would his revelations be an on-going drama in the Zionist news, or would he just dump his info on the web like every other whistle-blower, while the Zionist news tries to distract you from it?

    And think twice about the alleged “ECHELON” surveillance system too.

    If the government is watching and recording “every keystroke” and can trace every message, why cant they catch any of the thousands of idiots on the internet who are running con games, writing viruses, stealing info, stealing identities, hacking government computers, selling drugs, and peddling kiddie porn?

    Their “all seeing eye” high-tech surveillance is as much an illusion as your constitutional rights, and whenever they do catch an internet criminal, it requires many man hours, and usually a sting operation too.

    The ECHELON BS, the Brandon Raub arrest, and these Snowden revelations are all propaganda tools designed to silence dissent, and keep you from forwarding damning information by scaring you into thinking they can read everything you write.

    All they need to do is keep you quiet, and the Zionist news will be all anyone knows… and then they win.

    Do you see their motivation for this “all-seeing eye” propaganda campaign? They can’t beat us physically because we’re way too many of us. They can’t “round up the dissidents” either, for the same reason.

    All they can do is try to scare you into silence, and that’s all they have to do.

    1. And remember: Every financial transaction on the internet, whether it be banking or merchant, is protected by PRIVATE internet security firms that are hired by the businesses.

      Why can’t banks and merchants just call the police when there’s an act of fraud on the internet?

      Do you mean to tell me that even the Zionist-owned banks, can’t even call upon the Zionist-run intelligence agencies to catch internet criminals, when we see total cooperation between Zionist media, banks, and governments all the time?

      Does it really make sense to you that they’re “recording every keystroke” but they can’t even protect their own banks and businesses from fraud, and they can’t catch people who commit the frauds?

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