People search Berkshire Hathaway data breach timeline because the brand sits on billions of accounts, credentials, and cloud workloads. BreachHistory indexes 2 Berkshire Hathaway-linked incidents, with headline counts up to 2K+ in catalog rows. This page maps every attested event through 2026 with internal links to canonical records.
Why Berkshire Hathaway breach history matters
Berkshire Hathaway operates in Finance (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
2016 — — Berkshire Hathaway: Location of breached information: Unauthorized…
Cataloged incident. Location of breached information: Unauthorized Access/Disclosure Business associate present: Yes Exposed categories include Personal information. BreachHistory cites approximately 2K+ affected records in this row. See the berkshire2016 and canonical BreachHistory entry.
2011 — — Berkshire Hathaway: Loan account numbers were printed on the outside of…
Cataloged incident. Loan account numbers were printed on the outside of envelopes sent to customers. The account numbers were on the line just above customer name and address. Exposed categories include Personal information. No attested victim count is published for this row yet. See the berkshire2011 and canonical BreachHistory entry.
Patterns and analysis
- Mixed intrusion and disclosure events — appears across multiple Berkshire Hathaway 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 Berkshire Hathaway company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/berkshire · Latest: berkshire2016.
Sources: BreachHistory catalog (2 rows for Berkshire Hathaway), company and regulator disclosures cited in individual breach records.