People search US Military data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 9 US Military-linked incidents, with headline counts up to 76M+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why US Military breach history matters
US Military operates in Government (United States). Across indexed rows, recurring themes include cloud and database misconfiguration. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.
Full timeline through 2026
2011 — — US Military: Accidentally published, 50K records
Cataloged incident. Data breach reported to Have I Been Pwned or similar sources. Further technical details not publicly disclosed. BreachHistory cites approximately 50K+ affected records in this row. See the us-military2011 and canonical BreachHistory entry.
2010 — — US Military: Wikileaks, Wikileaks / Bradley Manning/Cablegate, 260K records
Cataloged incident. Wikileaks, Wikileaks / Bradley Manning/Cablegate BreachHistory cites approximately 260K+ affected records in this row. See the us-military2010 and canonical BreachHistory entry.
2010 — — US Military: Wikileaks, 392K records
Cataloged incident. Wikileaks. Classified Iraq War documents BreachHistory cites approximately 392K+ affected records in this row. See the us-military2010us-military2010b and canonical BreachHistory entry.
2010 — — US Military: Accidentally published, 50K records
Cataloged incident. Data breach reported to Have I Been Pwned or similar sources. Further technical details not publicly disclosed. BreachHistory cites approximately 50K+ affected records in this row. See the us-militaryu2 and canonical BreachHistory entry.
2010 — — US Military: Data breach reported, 300K records
Cataloged incident. Data breach reported. Reference: http://www.guardian.co.uk/news/datablog/2010/nov/29/wikileaks-cables-data BreachHistory cites approximately 300K+ affected records in this row. See the us-military20102 and canonical BreachHistory entry.
2009 — — US Military: According to a report to Congress, assessment forms…
Cataloged incident. According to a report to Congress, assessment forms of 72,000 service members who returned from deployment to Iraq or Afghanistan between Jan 1, 2007 to May 31, 2008 were breached. The forms ask for the service member's SSN,. Name, date of birth. BreachHistory cites approximately 72K+ affected records in this row. See the us-military2009 and canonical BreachHistory entry.
2009 — — US Military: About 131,000 former and current Army Guard members…
Cataloged incident. About 131,000 former and current Army Guard members potentially affected when a personal laptop owned by an Army Guard contractor was stolen. Database incuded names, Social Security Numbers, incentive payment amounts and payment dates. BreachHistory cites approximately 131K+ affected records in this row. See the us-military2009us-military2009b and canonical BreachHistory entry.
2009 — — US Military: Without first destroying the data the agency sent…
Cataloged incident. Without first destroying the data the agency sent back a defective unencrypted hard drive for repair and recycling which held detailed records on 76 million veterans, including millions of Social Security numbers dating to 1972. BreachHistory cites approximately 76M+ affected records in this row. See the us-militaryu and canonical BreachHistory entry.
2006 — — US Military: The Veterans Affairs Department agreed to pay $20…
Cataloged incident. The Veterans Affairs Department agreed to pay $20 million to settle a class action lawsuit over the loss of a laptop. The department originally took three weeks to report the theft. The laptop was recovered with the data apparently intact a month after it was reported stolen. But it is impossible to say with absolute certainty that the data was not accessed and copied. BreachHistory cites approximately 26.5M+ affected records in this row. See the us-military2006 and canonical BreachHistory entry.
Patterns and analysis
- Cloud and database misconfiguration — appears across multiple US Military catalog entries; prioritize controls that address this class of failure.
- Record-count hygiene — BreachHistory indexes actor-cited figures separately from company-confirmed totals; read each row's technicalWriteup before treating counts as fact.
- 2026 monitoring — New disclosures roll into this timeline as they are verified or labeled unverified per catalog policy.
What to do if you may be affected
- Step 1: Enable phishing-resistant MFA on every account tied to this brand.
- Step 2: Use unique passwords and a password manager—breach rows often involve credential reuse.
- Step 3: Monitor official company breach notices and regulator filings, not dark-web downloads.
- Step 4: Bookmark the US Military company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/us-military · Latest: us-military2011.
Sources: BreachHistory catalog (9 rows for US Military), company and regulator disclosures cited in individual breach records.