HackingVulnerability ExploitData ExfiltratedCustomer Data InvolvedIDENTITY_BASICFINANCIAL_ACCOUNTLowContained
Montrose Environmental Group, Inc
bd_42ac8acf41f1dc5a · schema v1 · pii pii-v1
Full breach record for Montrose Environmental Group, Inc →Montrose Environmental Group, Inc. reported an external system breach (hacking) occurring between June 8 and June 11, 2022, discovered on August 4, 2022. The incident affected 269 individuals, including 1 Maine resident. Acquired data included names and financial account or credit/debit card numbers (with security codes/PINs). The company provided written notification and offered 12 months of credit monitoring and identity protection services via Experian.
Maine clockDiscovered Aug 4, 2022 → Filed with AG Sep 6, 202233d ⏱ ME AG >30d5 weeks 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.
This filing is one of 3 about the same incident.View merged incident
A leak claim by black_basta about this victim predates this filing by 31 days.View originating leak claim
Linked disclosures
Why this link?Ransomware claims (1)
- bd_54a7efa529034e1eLeak Siteblack_bastafiled 2022-08-06(31d gap)Candidate
Regulatory filings (1) · sorted by filing gap
- bd_9a97127a2612bae8Montana State AGfiled 2022-09-06Verified by operator
Source provenance
- Source URL
- https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/c8d74d4d-43aa-4dc0-b02a-3017a8a36046.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Sep 6, 2022
- Raw hash
- e996675bc0252802c47be0a3281dfa58075d39a053d0c364560f54c668d17285
Reporting entity
- Name
- Montrose Environmental Group, Incnorm: montrose environmental
Victim entity
- Name
- Montrose Environmental Group, Incnorm: montrose environmental
Incident
- Discovered
- Aug 4, 2022
- Materiality determined
- —
- Notification sent
- Sep 6, 2022
- Affected individuals
- 269
- Data types
- IDENTITY_BASICFINANCIAL_ACCOUNT
- Attack vector
- Unauthorized Access
- MITRE ATT&CK
- T1190 Exploit Public-Facing Application
- Threat actor
- ExternalFinancial
- Initial access
- exploit_public_facing
Compliance
- Time to disclose
- 5 weeks(33 days from discovery to filing)
- Compliance flags
- ME AG >30d · 33dLeak >30d
- 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: Aug 4, 2022→ Filed with AG: Sep 6, 202233d 30 days (soft) ME AG >30d
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.