Within Indictments
How Prosecutors Described the Army Damage
The Army allegations centered on deleted system files, lost accounts, and a network outage affecting thousands of computers.
On this page
- The Military District of Washington network
- Deleted files and user accounts
- Why outage scale mattered legally
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Introduction
In the US case against Gary McKinnon, one of the most serious allegations was not that he searched for UFO-related material, but that he damaged Army computer systems. Prosecutors claimed that his actions led to the deletion of critical files and user accounts, causing a major outage on a US Army network serving the Military District of Washington. The alleged disruption became a central element of the American cybercrime case because it transformed the matter from unauthorised access into a claim of operational damage to government systems. According to US authorities, the outage affected more than 2,000 computers and significantly disrupted military administrative functions. McKinnon disputed aspects of the government’s portrayal and maintained that he had not intended to cause damage. [Department of Justice]justice.govarea to shutdown, resulting in the total loss of Internet access and e-mail service to…Read more…
The Military District of Washington Network
The network at the centre of the allegation was the US Army’s Military District of Washington (MDW), an organisation responsible for supporting military operations and ceremonial functions in the Washington, DC area. Court summaries of the US allegations stated that McKinnon accessed Army computers located in Virginia and Washington that controlled or supported the MDW network. [UK Parliament]publications.parliament.ukmckinn 1UK ParliamentMckinnon V Government of The United States of America…30 Jul 2008 — The 97 computers the appellant accessed were: 53 army…
The significance of the network was not merely its size. Prosecutors argued that the affected systems were connected to governmental and defence functions, making any interruption more serious than a routine corporate IT failure. In the extradition proceedings, the House of Lords summarised the US case by stating that deleted operating-system files on nine computers allegedly resulted in the shutdown of the entire MDW network, which comprised more than 2,000 computers. [UK Parliament]publications.parliament.ukmckinn 1UK ParliamentMckinnon V Government of The United States of America…30 Jul 2008 — The 97 computers the appellant accessed were: 53 army…
American officials repeatedly highlighted this alleged outage when explaining why they viewed the case as one of the most damaging military hacking incidents they had encountered. The Department of Justice described the Washington-area network failure as causing a complete loss of Internet and email services for thousands of users. [Department of Justice]justice.govarea to shutdown, resulting in the total loss of Internet access and e-mail service to…Read more…
Deleted Files and User Accounts
A key feature of the prosecution’s narrative was the distinction between gaining access and causing damage after gaining access.
According to the indictment and later court summaries, investigators alleged that McKinnon:
- Obtained administrative privileges on Army systems.
- Installed remote-access software and other tools.
- Copied password and account files.
- Deleted user accounts. [pinsentmasons.com]pinsentmasons.comalleged uk hacker will fight extradition to us14 Nov 2002 — McKinnon is alleged to have installed a remote administration deleted a number of user accounts and deleted critical system…
- Deleted critical operating-system files. [Department of Justice+2Pinsent Masons]justice.govarea to shutdown, resulting in the total loss of Internet access and e-mail service to…Read more…
The account-deletion allegations were substantial in their own right. During extradition proceedings and related reporting, prosecutors alleged that more than 2,400 user accounts on an Army network-management computer were deleted, causing systems to reboot and become unusable. Other contemporary reports referred to roughly 1,300 deleted user accounts on a Fort Myer Army computer, reflecting different descriptions of damage appearing in various stages of the case. [UK Parliament+2The Guardian]publications.parliament.ukmckinn 1UK ParliamentMckinnon V Government of The United States of America…30 Jul 2008 — The 97 computers the appellant accessed were: 53 army…
The more consequential allegation involved operating-system files. Prosecutors argued that the deletion of those files impaired the computers’ ability to function and directly triggered the wider network outage. The House of Lords judgment, summarising the American allegations rather than making an independent finding of fact, stated that the deleted files shut down the entire MDW network for twenty-four hours. [UK Parliament]publications.parliament.ukmckinn 1UK ParliamentMckinnon V Government of The United States of America…30 Jul 2008 — The 97 computers the appellant accessed were: 53 army…
How the Claimed Outage Was Described
Different official and journalistic accounts described the disruption in slightly different ways, but they consistently portrayed it as a major operational failure.
The Department of Justice’s 2002 announcement stated that a Washington-area military network lost Internet and email access for approximately 2,000 users and remained affected for three days. [Department of Justice]justice.govarea to shutdown, resulting in the total loss of Internet access and e-mail service to…Read more…
Later legal summaries focused on a somewhat narrower claim: that the MDW network of more than 2,000 computers was shut down for twenty-four hours following deletion of critical files. Reuters, the House of Lords judgment, and several contemporaneous court reports repeated the twenty-four-hour figure. [UK Parliament+2Reuters]publications.parliament.ukmckinn 1UK ParliamentMckinnon V Government of The United States of America…30 Jul 2008 — The 97 computers the appellant accessed were: 53 army…
This distinction is important. Some accounts referred to a twenty-four-hour shutdown of the network itself, while others referred to several days of lost email and Internet service. The broader legal point remained the same: prosecutors alleged that the damage extended beyond a single machine and affected a large military network used by thousands of people. [Department of Justice]justice.govarea to shutdown, resulting in the total loss of Internet access and e-mail service to…Read more…
Why Outage Scale Mattered Legally
The scale of the alleged disruption helped explain why US authorities pursued extradition so aggressively.
Under the Computer Fraud and Abuse Act, prosecutors did not need to show that classified UFO files had been obtained. Instead, they sought to demonstrate unauthorised access combined with measurable damage and financial loss. The claimed shutdown of a network serving more than 2,000 computers provided a concrete example of operational harm that could be presented to a court. [Department of Justice]justice.govDepartment of Justice IndictmentDepartment of JusticeIndictmentJanuary 24, 2012 — Defendant GARY MCKINNON was an unemployed computer system administrator living in Londo…
The alleged outage also supported government estimates of repair and recovery costs. Different official statements cited damages exceeding $700,000 or approximately $900,000 across the affected military, NASA and related systems. Investigators argued that extensive remediation work was required after files, accounts and system components had been altered or deleted. [Department of Justice+2UK Parliament]justice.govarea to shutdown, resulting in the total loss of Internet access and e-mail service to…Read more…
For prosecutors, the Army outage was therefore more than a technical incident. It was evidence that the intrusions had allegedly impaired the availability and integrity of government systems, a core element of the criminal case. [UK Parliament]publications.parliament.ukmckinn 1UK ParliamentMckinnon V Government of The United States of America…30 Jul 2008 — The 97 computers the appellant accessed were: 53 army…
The Dispute Over What Actually Happened
Although the Army-network allegations became one of the most cited aspects of the case, they were also among the most contested.
McKinnon publicly acknowledged gaining unauthorised access to US military and NASA systems, but he challenged claims that he intentionally caused large-scale damage. Throughout the extradition battle, he argued that his purpose was to search for information related to UFOs and advanced technology rather than to sabotage military networks. Journalistic accounts of the case repeatedly noted his denial that he deliberately caused the outages described by prosecutors. [The Guardian]theguardian.comThe Guardian Gary Mc Kinnon timeline: events leading up to extraditionThe GuardianGary McKinnon timeline: events leading up to extradition…October 16, 2012 — 16 Oct 2012 — US prosecutors also allege he de…
Because the extradition proceedings never resulted in a US criminal trial, the government’s allegations about the MDW outage were never tested before an American jury. The public record therefore contains detailed prosecutorial claims and legal summaries of those claims, but no trial verdict resolving the dispute. What remains undisputed is that the alleged Army network shutdown became one of the central examples used by US authorities to portray the seriousness of the McKinnon intrusions. [UK Parliament]publications.parliament.ukmckinn 1UK ParliamentMckinnon V Government of The United States of America…30 Jul 2008 — The 97 computers the appellant accessed were: 53 army…
Amazon book picks
Further Reading
Books and field guides related to How Prosecutors Described the Army Damage. Use these as the next step if you want deeper reading beyond the article.
Cyber War
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This Is How They Tell Me the World Ends
Explains the consequences of vulnerabilities and attacks on government systems.
The Cuckoo's Egg
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Demonstrates how investigators pursue unauthorised access to sensitive systems.
Endnotes
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Source: justice.gov
Link: https://www.justice.gov/archive/criminal/cybercrime/press-releases/2002/mckinnonIndict.htmSource snippet
area to shutdown, resulting in the total loss of Internet access and e-mail service to...Read more...
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Source: publications.parliament.uk
Title: mckinn 1
Link: https://publications.parliament.uk/pa/ld200708/ldjudgmt/jd080730/mckinn-1.htmSource snippet
UK ParliamentMckinnon V Government of The United States of America...30 Jul 2008 — The 97 computers the appellant accessed were: 53 army...
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Source: justice.gov
Title: Department of Justice British National Charged with Hacking Into N.J
Link: https://www.justice.gov/archive/criminal/cybercrime/press-releases/2002/mckinnonIndict2.htmSource snippet
seven-count Virginia Indictment charges McKinnon for intrusions into 92 computer systems belonging to the U.S. Army, Navy, A...
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Source: reuters.com
Title: british nasa hacker to face us trial idUSL0623036
Link: https://www.reuters.com/article/technology/british-nasa-hacker-to-face-us-trial-idUSL0623036/Source snippet
British NASA hacker to face U.S. trial30 Jul 2008 — McKinnon is accused of causing the entire U.S. Army's Military District of Washington...
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Source: justice.gov
Title: Department of Justice Indictment
Link: https://www.justice.gov/archive/usao/nj/Press/files/pdffiles/Older/edva_mckinnon_indictment.pdfSource snippet
Department of JusticeIndictmentJanuary 24, 2012 — Defendant GARY MCKINNON was an unemployed computer system administrator living in Londo...
Published: January 24, 2012
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Source: pinsentmasons.com
Title: alleged uk hacker will fight extradition to us
Link: https://www.pinsentmasons.com/out-law/news/alleged-uk-hacker-will-fight-extradition-to-usSource snippet
14 Nov 2002 — McKinnon is alleged to have installed a remote administration deleted a number of user accounts and deleted critical system...
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Source: theguardian.com
Link: https://www.theguardian.com/world/2005/jun/08/usa.ukSource snippet
The Guardian'Military computer hacker' faces extradition to US8 Jun 2005 — Gary McKinnon, 39, faces extradition to the US deleting around...
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Source: pinsentmasons.com
Title: pentagon hacker mckinnon fights extradition
Link: https://www.pinsentmasons.com/out-law/news/pentagon-hacker-mckinnon-fights-extraditionSource snippet
'Pentagon hacker' McKinnon fights extradition28 Jul 2005 — Mark Summers, representing the US government, said McKinnon mounted an attack...
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Source: theguardian.com
Title: The Guardian Gary [Mc Kinnon]({{ ‘mc-kinnon/’ | relative_url }}) [timeline]({{ ‘timeline/’ | relative_url }}): events leading up to extradition
Link: https://www.theguardian.com/world/2012/oct/16/gary-mckinnon-timeline-extraditionSource snippet
The GuardianGary McKinnon timeline: events leading up to extradition...October 16, 2012 — 16 Oct 2012 — US prosecutors also allege he de...
Published: October 16, 2012
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Source: Wikipedia
Title: Gary Mc Kinnon
Link: https://en.wikipedia.org/wiki/Gary_McKinnonSource snippet
Gary McKinnonGary McKinnon (born February 1966) is a Scottish systems administrator and hacker who was accused by a US prosecutor in 2...
Published: February 1966
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Source: pinsentmasons.com
Title: british man faces extradition for us hacking trial
Link: https://www.pinsentmasons.com/out-law/news/british-man-faces-extradition-for-us-hacking-trialSource snippet
31 May 2005 — Arrested in November 2002 by officers from the National Hi-Tech Crime Unit, Gary McKinnon, 39, of north London faces extrad...
Published: May 2005
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Source: theguardian.com
Link: https://www.theguardian.com/technology/2005/jul/27/hacking.internetcrimeSource snippet
Hacker 'left note on US army computer' | Hacking27 Jul 2005 — Mr McKinnon, 39, faces extradition to the US over claims he accessed dozens...
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Source: youtube.com
Link: https://www.youtube.com/watch?v=FIlHu3YUBN4Source snippet
Gary McKinnon | UK Computer Hacker Who Was Accused...Gary McKinnon is a Scottish systems administrator and hacker who was accused of per...
Additional References
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Source: telegraph.co.uk
Link: https://www.telegraph.co.uk/news/worldnews/northamerica/usa/5945693/Gary-McKinnon-timeline-of-the-computer-hackers-case.htmlSource snippet
Gary McKinnon: timeline of the computer hacker's caseUS prosecutors also allege he deleted files which shut down the US Army's military d...
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Source: cybereason.com
Link: https://www.cybereason.com/blog/malicious-life-podcast-the-u.s-vs.-gary-mckinnonSource snippet
Malicious Life Podcast: The U.S. vs. Gary McKinnonHe stole around 950 passwords, trashed around 1,300 user accounts. He deleted files at...
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Source: infosecurity-magazine.com
Link: https://www.infosecurity-magazine.com/news/ufo-hacker-gary-mckinnon-denied-appeal-route-to/Source snippet
11 Oct 2009 — The 43-year-old McKinnon is alleged to have gained unauthorised access to the Pentagon's military networks in a bid to disc...
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Source: redhotcyber.com
Title: famous hackers the story of gary mckinnon
Link: https://www.redhotcyber.com/en/post/famous-hackers-the-story-of-gary-mckinnon/Source snippet
Famous Hackers: The Story of Gary McKinnon.1 Jul 2025 — He is accused of causing more than $700,000 in damage ($5,000 per machine) and de...
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Source: vlex.co.uk
Title: mckinnon v united states 793612009
Link: https://vlex.co.uk/vid/mckinnon-v-united-states-793612009Source snippet
McKinnon v United States of AmericaMr McKinnon is British and lives in London. Between February 2001 and March 2002 he gained unauthorise...
Published: February 2001
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Source: vlex.co.uk
Title: mckinnon v usa 818719549
Link: https://vlex.co.uk/vid/mckinnon-v-usa-818719549Source snippet
McKinnon v United States of America30 Jul 2008 — The 97 computers the appellant accessed were: 53 army computers, including computers bas...
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Source: spectrum.ieee.org
Title: the autistic hacker
Link: https://spectrum.ieee.org/the-autistic-hackerSource snippet
IEEE SpectrumGary McKinnon: The Autistic HackerHe is charged with causing over US $700 000 in damages ($5000 per machine) and deleting at...
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Source: youtube.com
Title: UK Hacker extradition to US blocked
Link: https://www.youtube.com/watch?v=Y5jtyps4oaYSource snippet
Gary McKinnon Case (Interview from 2009)...
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Source: youtube.com
Title: The Man Who Hacked the U.S. Government
Link: https://www.youtube.com/watch?v=ND0zQX1rGdgSource snippet
UK hacker to learn extradition fate...
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Source: youtube.com
Title: UK hacker to learn extradition fate
Link: https://www.youtube.com/watch?v=LEvGU1b4yswSource snippet
UK Hacker extradition to US blocked...
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