Coinbase
Disclosed Dec 11, 20259 months ago32 affectedConfirmed
Coinbase confirms contractor improperly accessed data of about 30 customers
Coinbase confirmed that a single support contractor improperly accessed information of roughly 30 customers, including contact details, KYC data, balances and transaction history, after screenshots of its support tool leaked on Telegram. Affected users were notified.
What is known
| People affected | 32 (as reported by the organization) |
|---|---|
| Disclosed | Dec 11, 2025 |
| Discovered | Dec 2025 |
| Happened | Nov 18, 2025 |
| Attack | Insider |
| Data exposed | Names, Emails, Phone numbers, Dates of birth, Government IDs, Financial |
| Sector | Crypto · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| Coinbase confirms insider breach linked to leaked support tool screenshotsbleepingcomputer.com · News | News |
| Indiana Attorney General 2025 data breach report: Coinbasein.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| Indiana AGresidents of IN | Dec 11, 2025 | 2 |
| Researchtotal | Feb 3 | 30 |
Other breaches at Coinbase
| Breach | Affected | ||||
|---|---|---|---|---|---|
| Bribed support contractors leak Coinbase customer data, $20M extortionMay 14, 20251 year agoInsider | May 14, 20251 year ago | Insider | Crypto | Confirmed | 69K |
| Disclosed Sep 27, 2021Sep 27, 20214 years ago | Sep 27, 20214 years ago | Not stated | Finance | Confirmed | 6,159 |
History of this record
- 2026-09-25 · source_type: press to official · backfill source
- 2026-09-25 · source_url: https://www.bleepingcomputer.com/news/security/coinbase-confirms-insider-breach-linked-to-leaked-support-tool-screenshots/ to https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/files/DB-Year-to-Date-Report-2025.pdf · backfill source
- 2026-09-25 · status: disclosed to confirmed · backfill source
- 2026-09-25 · verified_by: empty to in-ag · backfill source
- 2026-09-25 · verified: 0 to 1 · backfill source
- 2026-09-25 · records: 30 to 32 · backfill source
- 2026-09-25 · disclosed: 2026-02-03 to 2025-12-11 · backfill source
- 2026-09-25 · occurred: empty to 2025-11-18 · backfill source
- 2026-09-25 · added · seed source
First seen 2026-09-25 (Research), confirmed by Indiana AG. Record counts are as reported. Not legal advice.