Tailored Access Operations – Wikipedia, the free encyclopedia
The Office of Tailored Access Operations (TAO) is a cyber-warfare intelligence-gathering unit of the National Security Agency (NSA). It has been active since at least circa 1998.[1][2] TAO identifies, monitors, infiltrates, and gathers intelligence on computer systems being used by entities foreign to the United States.[3][4][5][6] The NSA terms these activities "computer network exploitation".
TAO is reportedly "now the largest and arguably the most important component of the NSA's huge Signals Intelligence Directorate (SID)[7] (SIGINT), consisting of more than 1,000 military and civilian computer hackers, intelligence analysts, targeting specialists, computer hardware and software designers, and electrical engineers."[1]
A document leaked by former NSA contractor Edward Snowden describing the unit's work says[not in citation given] TAO has software templates allowing it to break into commonly used hardware, including routers, switches, and firewalls from multiple product vendor lines".[8] According to The Washington Post, TAO engineers prefer to tap networks rather than isolated computers, because there are typically many devices on a single network.[8]
TAO's headquarters are termed the Remote Operations Center (ROC) and are based at the NSA headquarters at Fort Meade, Maryland. TAO also has expanded to NSA Hawaii (Wahiawa, Oahu), NSA Georgia (Fort Gordon, Georgia), NSA Texas (San Antonio, Texas), and NSA Colorado (Buckley Air Force Base, Denver).[1]
Since 2013, the head of TAO is Rob Joyce, a 25-plus year employee who previously worked in the NSA's Information Assurance Directorate (IAD). In January 2016, Joyce had a rare public appearance when he gave a presentation at the Usenixs Enigma conference. [9]
In the Remote Operations Center, 600 employees gather information from around the world.[10][11] Their motto is "Your data is our data, your equipment is our equipment - anytime, any place, by any legal means."
Details[citation needed] on a program titled QUANTUMSQUIRREL indicate NSA ability to masquerade as any routable IPv4 or IPv6 host. This enables an NSA computer to generate false geological location and personal identification credentials when accessing the Internet utilizing QUANTUMSQUIRREL.[15]
The NSA ANT catalog is a 50-page classified document listing technology available to the United States National Security Agency (NSA) Tailored Access Operations (TAO) by the Advanced Network Technology (ANT) Division to aid in cyber surveillance. Most devices are described as already operational and available to US nationals and members of the Five Eyes alliance. According to Der Spiegel, which released the catalog to the public on December 30, 2013, "The list reads like a mail-order catalog, one from which other NSA employees can order technologies from the ANT division for tapping their targets' data." The document was created in 2008.[16] Security researcher Jacob Appelbaum gave a speech at the Chaos Communications Congress in Hamburg, Germany, in which he detailed techniques that the simultaneously published Der Spiegel article he coauthored disclosed from the catalog.[16]
The TAO has developed an attack suite they call QUANTUM. It relies on a compromised router that duplicates internet traffic, typically HTTP requests, so that they go both to the intended target and to an NSA site (indirectly). The NSA site runs FOXACID software which sends back exploits that load in the background in the target web browser before the intended destination has had a chance to respond (it's unclear if the compromised router facilitates this race on the return trip). Prior to the development of this technology, FOXACID software made spear-phishing attacks the NSA referred to as spam. If the browser is exploitable, further permanent "implants" (rootkits etc.) are deployed in the target computer, e.g. OLYMPUSFIRE for Windows, which give complete remote access to the infected machine.[17] This type of attack is part of the man-in-the-middle attack family, though more specifically it is called man-on-the-side attack. It is difficult to pull off without controlling some of the Internet backbone.[18]
There are numerous services that FOXACID can exploit this way. The names of some FOXACID modules are given below:[19]
By collaboration with the British Government Communications Headquarters (GCHQ) (MUSCULAR), Google services could be attacked too, including Gmail.[20]
Finding machines that are exploitable and worth attacking is done using analytic databases such as XKeyscore.[21] A specific method of finding vulnerable machines is interception of Windows Error Reporting traffic, which is logged into XKeyscore.[22]
QUANTUM attacks launched from NSA sites can be too slow for some combinations of targets and services as they essentially try to exploit a race condition, i.e. the NSA server is trying to beat the legitimate server with its response.[23] As of mid-2011, the NSA was prototyping a capability codenamed QFIRE, which involved embedding their exploit-dispensing servers in virtual machines (running on VMware ESX) hosted closer to the target, in the so-called Special Collection Sites (SCS) network worldwide. The goal of QFIRE was to lower the latency of the spoofed response, thus increasing the probability of success.[24][25][26]
COMMENDEER [sic] is used to commandeer (i.e. compromise) untargeted computer systems. The software is used as a part of QUANTUMNATION, which also includes the software vulnerability scanner VALIDATOR. The tool was first described at the 2014 Chaos Communication Congress by Jacob Appelbaum, who characterized it as tyrannical.[27][28][29]
QUANTUMCOOKIE is a more complex form of attack which can be used against Tor users.[30]
According to a 2013 article in Foreign Policy, "TAO has become increasingly accomplished at its mission, thanks in part to the high-level cooperation it secretly receives from the 'big three' American telecom companies (AT&T, Verizon and Sprint), most of the large US-based Internet service providers, and many of the top computer security software manufactures and consulting companies."[36] A 2012 TAO budget document claims that these companies, on TAO's behest, "insert vulnerabilities into commercial encryption systems, IT systems, networks and endpoint communications devices used by targets".[36] A number of US companies, including Cisco and Dell, have subsequently made public statements denying that they insert such back doors into their products.[37]Microsoft provides advance warning to the NSA of vulnerabilities it knows about, before fixes or information about these vulnerabilities is available to the public; this enables TAO to execute so-called zero-day attacks.[38] A Microsoft official who declined to be identified in the press confirmed that this is indeed the case, but said that Microsoft can't be held responsible for how the NSA uses this advance information.[39]
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Tailored Access Operations - Wikipedia, the free encyclopedia
- SC Quashes NSA Detention of Main Accused in 2024 Sambhal Violence, Imposes Rs 10 Lakh Cost on BJP Govt in UP - TheWire.in - September 29th, 2026 [September 29th, 2026]
- Rush Hour: NSA detention of Sambhal violence accused quashed, cartoonists content withheld and more - Scroll.in - September 29th, 2026 [September 29th, 2026]
- Another NSA order of UP govt quashed, SC orders immediate release of 2024 Sambhal violence accused - theprint.in - September 29th, 2026 [September 29th, 2026]
- NSA Demands Centre, State Action Over Killings, Arson and Displacement of Nagas - Ukhrul Times - September 29th, 2026 [September 29th, 2026]
- World Cup Visa Scandal: Nobody at the NSA will be protected - Sports Minister - Modern Ghana - September 22nd, 2026 [September 22nd, 2026]
- NSA Ajit Doval Recounts Moment He Feared the End of His Career - NDTV - September 22nd, 2026 [September 22nd, 2026]
- Thorough reorganization at NSA will create five 'mission centers,' including cyber and AI - The Record from Recorded Future News - September 15th, 2026 [September 15th, 2026]
- United States NSA recruits psychologists in bid to boost its appeal to new blood - Intelligence Online - September 15th, 2026 [September 15th, 2026]
- NSA releases best practices guide on cyber hygiene for defending against advanced threats - American Hospital Association - September 15th, 2026 [September 15th, 2026]
- United States NSA recruits psychologists in bid to boost its appeal to new blood - Intelligence Online - September 15th, 2026 [September 15th, 2026]
- NSA, FBI & CISA Issue Advisory on China-Based AI Distillation Campaigns - ExecutiveGov - September 15th, 2026 [September 15th, 2026]
- NSA, FBI & CISA Issue Advisory on China-Based AI Distillation Campaigns - ExecutiveGov - September 15th, 2026 [September 15th, 2026]
- NSA set to get five new organizations - Breakingthenews.net - September 15th, 2026 [September 15th, 2026]
- FBI, NSA warn Chinese AI companies like DeepSeek and Alibaba are reportedly carrying out 'industrial-scale' distillation campaigns to boost their... - September 15th, 2026 [September 15th, 2026]
- Confused about which VPN is right, US senator asks the NSA for guidance - Ars Technica - September 4th, 2026 [September 4th, 2026]
- Former NSA cybersecurity official: Pro-China 'influence operations' and 'cognitive warfare' work in protests against data centers and Flock cameras -... - September 4th, 2026 [September 4th, 2026]
- Can the county home to the NSA and US Cyber Command ban data centers? - The Baltimore Banner - September 4th, 2026 [September 4th, 2026]
- Family proud of her work for poor: DU students father after HC quashes NSA case - The Times of India - September 4th, 2026 [September 4th, 2026]
- Man who cut down Flock camera in St. Johns County claimed he was working with the NSA - Action News Jax - September 4th, 2026 [September 4th, 2026]
- Lucknow journalist Satyam Verma to move Allahabad high court after fellow NSA accused Aakriti gets relief - The Times of India - September 4th, 2026 [September 4th, 2026]
- NSA Board Dissolution: Olympic, Paralympic representation expected to remain on new board - 3News - September 4th, 2026 [September 4th, 2026]
- NSA Joins FBI in Issuing Warning about Chinese Hacking Group QTFY Cyber Activity - National Security Agency (.gov) - September 2nd, 2026 [September 2nd, 2026]
- NSA and FBI Warn Chinese Hackers Are Actively Targeting US Critical Infrastructure - LinkedIn - September 2nd, 2026 [September 2nd, 2026]
- UP firecracker blast toll climbs to 13; NSA invoked against accused - Daily Pioneer - September 2nd, 2026 [September 2nd, 2026]
- Man Accused of Impersonating Chief Justice Roberts, NSA Agent - Bloomberg Law News - August 25th, 2026 [August 25th, 2026]
- I Worked For The NSA For Years. Here's What Happened To My Life After Donald Trump And DOGE Showed Up Last Year. - HuffPost - August 25th, 2026 [August 25th, 2026]
- NSA isnt complying with federal laws on whistleblower protections, IG finds - Federal News Network - August 25th, 2026 [August 25th, 2026]
- NSA Doval says India-China ties 'returning to normalcy' as he holds key talks with Wang Yi on border issue - The New Indian Express - August 25th, 2026 [August 25th, 2026]
- 4 Ways Tim Kosiba and the NSA Are Countering the Chinese Intelligence Threat - GovCon Wire - August 25th, 2026 [August 25th, 2026]
- Man charged with forging Chief Justice John Robertss signature, impersonating NSA agent - Yahoo - August 25th, 2026 [August 25th, 2026]
- NSA Doval to visit China on Monday to attend Special Representatives talks with FM Wang - The Economic Times - August 25th, 2026 [August 25th, 2026]
- Audit Finds Lack of Oversight of NDAs at NSA - FEDweek - August 25th, 2026 [August 25th, 2026]
- Redefining India-China Relations: NSA Dovals Visit to Beijing May Provide the Breakthrough - Raksha Anirveda - August 25th, 2026 [August 25th, 2026]
- NSA, FBI warns of hackers using AI-generated tools in attacks on critical infrastructure technology - The Record from Recorded Future News - August 25th, 2026 [August 25th, 2026]
- NSA Doval meets Chinese Vice President Han Zheng ahead of border talks - The Tribune - August 25th, 2026 [August 25th, 2026]
- India-China ties normalised by peace on border, says NSA Doval at talks with Wang Yi - Firstpost - August 25th, 2026 [August 25th, 2026]
- NSA Ajit Doval holds 25th India-China border talks with Wang Yi - timesofindia.indiatimes.com - August 25th, 2026 [August 25th, 2026]
- NSA, CISA, FBI, DOE, and EPA Warn of Active AI-Assisted Attacks on Siemens S7 PLCs - Security Affairs - August 25th, 2026 [August 25th, 2026]
- NSA Ajit Doval arrives in Beijing, set for border talks with Chinas Wang Yi on August 25 - The Hindu - August 25th, 2026 [August 25th, 2026]
- NSA, FBI Warn of AI-Powered Attacks on Industrial Systems Targeting Siemens PLCs - finance.biggo.com - August 25th, 2026 [August 25th, 2026]
- NSA Ajit Doval holds talks with Chinese FM Wang Yi on boundary issue - News On AIR - August 25th, 2026 [August 25th, 2026]
- NSA Doval in Beijing for Talks with Chinese FM - Kashmir Observer - August 25th, 2026 [August 25th, 2026]
- NSA Ajit Doval to hold India-China boundary talks with Wang Yi in Beijing - The New Indian Express - August 25th, 2026 [August 25th, 2026]
- NSA Ajit Doval to hold border talks with Chinese Foreign Minister Wang on Tuesday - The Tribune - August 25th, 2026 [August 25th, 2026]
- Ayitey Powers Arrested Over Alleged Death Threat Against NSA Boss - Modern Ghana - August 25th, 2026 [August 25th, 2026]
- NSA Doval arrives in Beijing for talks with Chinese FM Wang Yi on boundary issue - ThePrint - August 25th, 2026 [August 25th, 2026]
- Police arrest former boxer Ayitey Powers over alleged death threat on NSA boss - Ghanaian Times - August 25th, 2026 [August 25th, 2026]
- NSA Ajit Doval in Beijing for boundary talks - Awaz The Voice - August 25th, 2026 [August 25th, 2026]
- ID Based on Anonymous Informant, Sudden Reference to 2009 Home Ministry Notification: Why NSA Case Against Satyam Verma Is Unconvincing - TheWire.in - August 16th, 2026 [August 16th, 2026]
- NSA Ajit Doval: India's Strength Infused with Tolerance Amid Military Actions - India News Network - August 16th, 2026 [August 16th, 2026]
- NSA Ajit Doval Reveals Operation Sindoor Strategy in New Discovery Docuseries - Daily Pioneer - August 16th, 2026 [August 16th, 2026]
- NSA Ajit Doval on Operation Sindoor: 'India can hit hard, irrespective of consequences' - wionews.com - August 16th, 2026 [August 16th, 2026]
- Indias generosity, tolerance should not be mistaken for weakness: NSA Ajit Doval on Op Sindoor - The Tribune - August 14th, 2026 [August 14th, 2026]
- 'Don't mistake India's generosity with weakness': NSA Ajit Doval on Operation Sindoor - The Times of India - August 14th, 2026 [August 14th, 2026]
- India's generosity, tolerance should not be mistaken for weakness: NSA Ajit Doval on Operation Sindoor - The Hindu - August 14th, 2026 [August 14th, 2026]
- Former NSA Chief Gen. Paul Nakasone: AI Is Changing the Cyber Battlefield - The Cipher Brief - August 14th, 2026 [August 14th, 2026]
- NSA Doval says Indias restraint should not be mistaken for weakness - Awaz The Voice - August 14th, 2026 [August 14th, 2026]
- NSA Ajit Doval says India can hit hard irrespective of consequences in first post-Sindoor interview - The Economic Times - August 14th, 2026 [August 14th, 2026]
- Man claiming to be undercover agent of NSA Ajit Doval arrested in Bihar - The Hindu - August 14th, 2026 [August 14th, 2026]
- Indias tolerance should not be mistaken for weakness; can take risks, hit hard: NSA Doval on Op Sindoor - The Kashmir Horizon - August 14th, 2026 [August 14th, 2026]
- Indias Tolerance Not a Sign of Weakness: NSA Ajit Doval on Operation Sindoor - The CSR Journal - August 14th, 2026 [August 14th, 2026]
- NSA Joins FBI and Others in Releasing Guidance to Defend Against Gunra Ransomware - National Security Agency (NSA) (.gov) - August 12th, 2026 [August 12th, 2026]
- Your router is probably vulnerable to the same attacks the NSA just warned about - MakeUseOf - August 12th, 2026 [August 12th, 2026]
- Trump has to accept hes going to lose Iran war: Former deputy NSA - MS NOW - August 12th, 2026 [August 12th, 2026]
- NSA installs DHS lawyer as new general counsel - The Record from Recorded Future News - August 12th, 2026 [August 12th, 2026]
- Manipur to invoke NSA against NH extortionists: Min - The Times of India - August 12th, 2026 [August 12th, 2026]
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- Capability, Not Compute: NSA Discretion in the Frontier AI EO - The Well News - July 7th, 2026 [July 7th, 2026]
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- Youth Round Table Discussion: Youth round table discussion held at NSA - Myanmar International TV - July 1st, 2026 [July 1st, 2026]
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- Crypto Executive Disputes Claims Anthropics Mythos Breached NSA Systems - Yahoo Tech - June 22nd, 2026 [June 22nd, 2026]
- Crypto Executive Disputes Claims Anthropics Mythos Breached NSA Systems - BeInCrypto - June 22nd, 2026 [June 22nd, 2026]
- Its more than Iran could have ever hoped for: Ex-US NSA John Bolton on US-Iran deal - Firstpost - June 22nd, 2026 [June 22nd, 2026]
- Manipur slaps NSA on youth already held under UAPA. Why HC quashed both cases, ordered his release - ThePrint - June 22nd, 2026 [June 22nd, 2026]
- Algorand Post-Quantum Security by 2027: 3 Years Ahead of NSA - The Cryptonomist - June 22nd, 2026 [June 22nd, 2026]
- China foreign minister set to attend Brics NSA meet in Delhi next week - The Times of India - June 22nd, 2026 [June 22nd, 2026]
- India to host BRICS NSA meet on June 2223: MEA - Awaz The Voice - June 22nd, 2026 [June 22nd, 2026]
- IDR Final Rule updates NSA dispute resolution | United States | Global law firm - Norton Rose Fulbright - June 16th, 2026 [June 16th, 2026]
- Where Is Edward Snowden Now? What to Know About the NSA Whistleblower's Life in Exile, 13 Years Later - People.com - June 16th, 2026 [June 16th, 2026]