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Archive for January 10th, 2014|Daily archive page

Monitoring the Spectrum: Building Your Own Distributed RF Scanner Array – Andrew Reiter @ 30c3

In Archive, NSA, Surveillance, Technology on January 10, 2014 at 8:31 PM

AnonyOps: Curious about the NSA listening via HOWLERMONKEY? Build your own RF scanner

12/27/2013

Andrew Reiter: Software-Defined Radio (SDR) has increased in popularity in recent years due to the decrease in hardware costs and increase in processing power. One example of such a class of devices is the RTL-SDR USB dongles based on the Realtek RTL2832U demodulator. This talk will discuss my experience in building a distributed RF scanner array for monitoring and spectrum mapping using such cheap SDR devices. The goal is to help the audience understand the what, why, and how of building their own RF monitoring array so that they will be able to do it themselves. In this era of increasingly being watched, we must be prepared to do our own watching.

FBI Ultrasonic Listening Device

In Archive, FBI, Surveillance, Technology on January 10, 2014 at 8:08 PM

via Cryptome (PDF/<1MB)/GovernmentAttic (PDF/61MB)

“Devices exist which, by sending an electrical impulse of ultrasonic frequency through a telephone circuit by tapping, will permit remote surveillance of any office in which a telephone is located y utilizing the telephone microphone as a pick-up. Such eavesdropping may be accomplished without additional wires and is possible even though the handset is in a “hung-up” position.”

National Security Letters in Foreign Intelligence Investigations: Legal Background

In Archive, DOJ, FBI, NSA, NSL, Surveillance on January 10, 2014 at 4:43 PM

01/03/2014

via Steven Aftergood/SecrecyNews

nsl-statutes

fbi-exigent-letters

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