The Daily Omnivore

Room 641A is an intercept facility operated by AT&T for the U.S. National Security Agency (NSA), beginning in 2003. It is fed by fiber optic lines from beam splitters installed in fiber optic trunks carrying Internet backbone traffic and, therefore, presumably has access to all Internet traffic that passes through the building.The existence of the room was revealed by a former AT&T technician, Mark Klein, and was the subject of a 2006 class action lawsuit by the Electronic Frontier Foundation (EFF) against AT&T. Klein claims he was told that similar black rooms are operated at other facilities around the country.

The EFF suit accused the telecommunication company of violating the law and the privacy of its customers by collaborating with the NSA in a massive, illegal program to wiretap and data-mine Americans’ communications. Room 641A is located in the SBC Communications building at 611 Folsom Street, San Francisco, three floors of which were occupied by AT&T before SBC purchased AT&T. The room was referred to in internal AT&T documents as the SG3 (Study Group 3) Secure Room. The room measures about 24 by 48 feet (7.3 by 15 m) and contains several racks of equipment, including a Narus STA 6400, a device designed to intercept and analyze Internet communications at very high speeds.

The United States Cyber Command (USCYBERCOM), located on Ft. Meade in Maryland, was officially activated in May of 2010. The command is led by National Security Agency Director General Keith B. Alexander.  Elements of the command are responsible for the evolving mission of Computer Network Attack (CNA) – destroying networks and penetrating enemy computers to steal or manipulate data, and taking down command-and-control systems, for example. Some of these capabilities are known as Special Technical Operations (STO).

It has been suggested within the military that the cultures of the Army, Navy and Air Force are fundamentally incompatible with that of cyber warfare, and requires a fourth branch, a cyber-warfare branch. COL John Surdu (chief of staff of the United States Army Research, Development and Engineering Command) stated that the three major services are ‘properly positioned to fight kinetic wars, and they value skills such as marksmanship, physical strength, the ability to leap out of airplanes and lead combat units under enemy fire. These skills are irrelevant in cyber warfare.’

A denial-of-service attack (DoS attack) or distributed denial-of-service attack (DDoS attack) is an attempt to make a computer resource unavailable to its intended users. Perpetrators of DoS attacks typically target sites or services hosted on high-profile web servers such as banks, credit card payment gateways, and even root nameservers. The term is generally used with regards to computer networks, but is not limited to this field, for example, it is also used in reference to CPU resource management.   DoS attacks are prosecuted in a number of nations under a variety of computer crime laws. They can also constitute acts of cyberwarfare.

One common method of attack involves saturating the target machine with external communications requests, such that it cannot respond to legitimate traffic, or responds so slowly as to be rendered effectively unavailable. In general terms, DoS attacks are implemented by either forcing the targeted computer(s) to reset, or consuming its resources so that it can no longer provide its intended service or obstructing the communication media between the intended users and the victim so that they can no longer communicate adequately.