MisuseFinancial ServicesTechnologyFinancePrivilege AbuseExtortion DemandRansom DemandedData ExfiltratedCustomer Data InvolvedEmployee Data InvolvedTargetedIdentity (basic)Government IDFinancial accountCriticalContained

COINBASE, INC.

bd_b45c155746e8d50c · schema v1 · pii pii-v1

Severity

Critical

Financial impact

$20.00M

Discovered

May 11, 2025

Filed

May 20, 2025

To disclose

9 days

Affected · nationwide

69,461217 in this filing

Linked

10 filings

Confidence

66%

Full breach record for COINBASE, INC. →4 incidents on file

Coinbase, Inc. reported an insider wrongdoing incident where individuals performing services for Coinbase at overseas retail support locations improperly accessed customer information. The breach occurred on 12/26/2024, was discovered on 05/11/2025, and affected approximately 69,461 individuals, including 217 Maine residents. Data involved included personal identifiers, government ID images, and account information. A third party attempted to extort $20 million. Coinbase fired the individuals, referred the case to law enforcement, and offered one year of credit monitoring.

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Maine clockDiscovered May 11, 2025 → Filed with AG May 20, 20259d ✓ ME AG ≤30d9 days discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 136 days

discovery → filing · 9 days

Dec 26, 2024

Begins

May 11, 2025

Discovered

May 20, 2025

Filed

vs. sector median

7 wks faster

This filing is one of 10 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (9) · sorted by filing gap

California State AGbd_2406100bb1153d9e2025-05-20Verified
Montana State AGbd_6fcf4d20742c3a722025-05-20Verified
Washington State AGbd_7388d192de2195c02025-05-20Verified
Massachusetts State AGbd_fa2703e77095dfa82025-05-20Verified

Show 5 more filings ↓up to 19d gap

SEC 8-Kbd_6b9a0642ea872c252025-05-15 · +5dCandidate
New Hampshire State AGbd_bc2dd2c7c34bf3fe2025-05-27 · +7dVerified
Indiana State AGbd_a3874b13126e95f92025-05-30 · +10dVerified
Nebraska State AGbd_eb31106dc74935862025-05-30 · +10dVerified
Illinois State AGbd_a0715ceb81713b592025-05-01 · +19dCandidate

Name: COINBASE, INC.
norm: coinbase
Domain: coinbase.com

Name: COINBASE, INC.
norm: coinbase
Domain: coinbase.com
Industry: Financial ServicesllmTechnologyllm

Discovered: May 11, 2025
Breach occurred: Dec 26, 2024
Undetected for: 136 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 30, 2025
Affected individuals: 69,461state + nationwide
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security numberDate of birth
Attack vector: Insider
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: InternalFinancial
Regulator citations: Referred the case to U.S. and international agencies
Initial access: insider_action

During the incident: Individuals involved were fired on the spot
Referred the case to U.S. and international agencies and are pressing for criminal charges
Opening a new support hub in the U.S. and adding stronger security controls and monitoring across all locations
Increased investment in insider-threat detection, automated response, and simulating similar security threats
Offering free one-year credit monitoring and identity protection services provided by IDX
Flagged accounts now require additional ID checks on large withdrawals and include mandatory scam-awareness prompts
Created a $20 Million Reward Fund instead of paying the ransom
Changes made: Opening a new support hub in the U.S. and adding stronger security controls and monitoring across all locations
Increased investment in insider-threat detection, automated response, and simulating similar security threats to find failure points in any internal system
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 days(9 days from discovery to filing)
Compliance flags: ME AG ≤30d · 9d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: May 11, 2025
→ Filed with AG: May 20, 2025
9d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: May 11, 2025 → Filed with AG: May 20, 2025	9d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 10 filings · 9 states

View merged incident ↗

Illinois State AGMay 1 · first

SEC 8-K+14d

California State AG+19d

Montana State AG+19d

Washington State AG+19d

Massachusetts State AG+19d

Maine State AG+19d · this page

New Hampshire State AG+26d

Indiana State AG+29d

Nebraska State AG+29d

Pattern: first filing May 1 (IL), last May 30 (NE) — a 29-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/f61fae18-f669-499e-9a87-f4d323d281f8.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 20, 2025
Raw hash: 7717c173837c6839ca726182dfab86b15d1cb700c0af5211250a58fb4e01694e

Linked disclosures

Regulatory filings (9) · sorted by filing gap

Reporting entityCOINBASE, INC.

Victim entityCOINBASE, INC.

Incidentdiscovered May 11, 2025

Stated responseIndividuals involved were fired on the spot

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov