People search Palantir data breach timeline because regulated data and trust are existential—one incident triggers class actions and regulator exams. BreachHistory indexes 2 Palantir-linked incidents. This page maps every attested event through 2026 with internal links to canonical records.
Why Palantir breach history matters
Palantir operates in Healthcare (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
2025 — federal suit vs former engineers alleging Slack exfiltration to rival Percepta AI
Cataloged incident. Palantir Technologies filed civil action in the Southern District of New York alleging two senior engineers misappropriated crown-jewel material—source code, customer workflow artifacts, and commercial playbooks—via Slack exports and personal devices while departing to help launch General Catalyst–backed Percepta AI. Coverage emphasized trade-secret and competitive-use allegations; defendants publicly denied wrongdoing. No court finding of criminal breach is implied—BreachHistory records the pleaded facts as report Exposed categories include Alleged proprietary code, customer-engagement documentation, and related trade-secret-class materials. No attested victim count is published for this row yet. See the palantir-percepta-litigation2025 and canonical BreachHistory entry.
2021 — access-control defect exposed investigative material
Cataloged incident. Journalism citing DOJ oversight described a configuration/software defect in FBI deployments of Palantir’s analytics software that, for more than a year, could permit users without proper clearance to view sensitive law-enforcement datasets (e.g., case details beyond their authorization). Palantir attributed the failure to customer-side deployment settings and stated a fix was supplied; political oversight hearings amplified the episode. This entry reflects a systemic authorization-boundary failure in a major produ Exposed categories include Sensitive investigative records accessible outside intended personnel compartments (per described defect). No attested victim count is published for this row yet. See the palantir-fbi-glitch2021 and canonical BreachHistory entry.
Patterns and analysis
- Cloud and database misconfiguration — appears across multiple Palantir 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: Watch for medical-ID theft and billing fraud after health-data incidents.
- Step 5: Bookmark the Palantir company page for new 2026+ disclosures.
Canonical BreachHistory hub
Explore every indexed row: breachhistory.com/palantir-technologies · Latest: palantir-percepta-litigation2025.
Sources: BreachHistory catalog (2 rows for Palantir), company and regulator disclosures cited in individual breach records.