People search US Office of Personnel Management (2nd Breach) data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 2 US Office of Personnel Management (2nd Breach)-linked incidents, with headline counts up to 21.5M+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why US Office of Personnel Management (2nd Breach) breach history matters
US Office of Personnel Management (2nd Breach) operates in Technology (United States). Across indexed rows, recurring themes include mixed intrusion and disclosure events. Understanding the chronological pattern helps security teams, customers, and regulators separate confirmed disclosures from forum marketing.
Full timeline through 2026
2015 — — US Office of Personnel Management (2nd Breach): Attackers have targeted the forms submitte…
Cataloged incident. Jul 2015. Attackers have targeted the forms submitted by intelligence and military personnel for security clearances. The document includes personal information - everything from eye colour, to financial history, to past substance abuse, as well as contact details for the individual's friends and relatives BreachHistory cites approximately 21.5M+ affected records in this row. See the us-office-of-personnel-management-2nd-br and canonical BreachHistory entry.
2010 — — US Office of Personnel Management (2nd Breach): attackers have targeted the forms submitte…
Cataloged incident. attackers have targeted the forms submitted by intelligence and military personnel for security clearances. The document includes personal information - everything from eye colour, to financial history, to past substance abuse, as well as contact details for the individual's friends and relatives BreachHistory cites approximately 21.5M+ affected records in this row. See the us-office-of-personnel-management-2nd-br and canonical BreachHistory entry.
Patterns and analysis
- Mixed intrusion and disclosure events — appears across multiple US Office of Personnel Management (2nd Breach) 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: Review OAuth app permissions and revoke unused third-party integrations.
- Step 5: Bookmark the US Office of Personnel Management (2nd Breach) company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/us-office-of-personnel-management-2nd-breach · Latest: us-office-of-personnel-management-2nd-breach2015.
Sources: BreachHistory catalog (2 rows for US Office of Personnel Management (2nd Breach)), company and regulator disclosures cited in individual breach records.