I start with the premise that they suck/record the entire intarwebs 24/7. So they can pull a "wayback machine" stunt if need be whenever they want. Packets encryption is then broken with supercalculators, plural
If they really want to get back at you, they will get back at you. If there's something they have going for them technologically, it's brute force, they have technological means the average internet user can only try to imagine. All the commonly available knowledge when it comes to it is only the tip of the iceberg. That's the default position, at least for me
https://en.wikipedia.org/wiki/Room_641A
Room 641A is a telecommunication interception facility operated by AT&T for the U.S. National Security Agency, as part of its warrantless surveillance program as authorized by the Patriot Act. The facility commenced operations in 2003 and its purpose was publicly revealed in 2006.[1][2]
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.[1] 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 14.6 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.[1] It is fed by fiber optic lines from beam splitters installed in fiber optic trunks carrying Internet backbone traffic.[3] In the analysis of J. Scott Marcus, a former CTO for GTE and a former adviser to the Federal Communications Commission, it has access to all Internet traffic that passes through the building, and therefore "the capability to enable surveillance and analysis of internet content on a massive scale, including both overseas and purely domestic traffic."[4]
The existence of the room was revealed by former AT&T technician Mark Klein and was the subject of a 2006 class action lawsuit by the Electronic Frontier Foundation against AT&T.[5] Klein claims he was told that similar black rooms are operated at other facilities around the country.[6]
Room 641A and the controversies surrounding it were subjects of an episode of Frontline,[7] the current affairs documentary program on PBS. It was originally broadcast on May 15, 2007. It was also featured on PBS's NOW on March 14, 2008. The room was also covered in the PBS Nova episode "The Spy Factory".
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See also
Cabinet noir
ECHELON
Fairview (surveillance program)
Fiber tapping
Hemisphere Project, mass surveillance program conducted by AT&T and paid for by the DEA
Main Core
NSA warrantless surveillance controversy
President's Surveillance Program
PRISM (surveillance program)
Signals intelligence
Upstream collection
Utah Data Center
33 Thomas Street
(post is archived)