HackingFinancial ServicesFinanceSupply Chain (3P Vendor)Customer Data InvolvedDelayed DiscoveryPIIFINANCIALLowContained
Mercer Advisors Inc.
bd_d07d326962bb13df · schema v1 · pii pii-v1
Full breach record for Mercer Advisors Inc. →Mercer Global Advisors Inc. reported an external system breach affecting systems of Tufton Capital Management, a registered investment advisor acquired by Mercer on April 30, 2025. An unauthorized third party accessed a segment of Tufton Capital's network from May 15–16, 2025. Forensic investigators confirmed the breach in August 2025; data review completed in October 2025. 661 individuals affected total; 1 Maine resident. Experian IdentityWorks (12-month) offered to affected individuals.
Maine clockDiscovered Aug 1, 2025 → Filed with AG Dec 15, 2025136d ✗ ME AG >90d19 weeks discovery → filing
⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
This filing is one of 7 about the same incident.View merged incident
Linked disclosures
Why this link?Ransomware claims (1)
- bd_74d6e3e7644e603dLeak Siteshinyhuntersfiled 2026-02-21(68d gap)Verified
Regulatory filings (5) · sorted by filing gap
- bd_41c52380b4cba0f8California State AGfiled 2026-03-31(106d gap)Verified by operator
- bd_c9cf67fb541b2750Washington State AGfiled 2026-03-31(106d gap)Verified
- bd_cf90fb475588f316Indiana State AGfiled 2026-03-31(106d gap)Verified
- bd_7434b0177f07c09aTexas State AGfiled 2026-04-02(108d gap)Verified
Show 1 more filing ↓Show fewer ↑up to 123d gap
- bd_4c2c111384c82779Oregon State AGfiled 2026-04-17(123d gap)Verified
Source provenance
- Source URL
- https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/233d11bb-f713-4eb5-a8e0-195c6e7e78ee.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Dec 15, 2025
- Raw hash
- 66258922b5b845f1e51422bdf7de696e05e9e33e05d72edb7bda48f72675a482
Reporting entity
- Name
- Mercer Advisors Inc.norm: mercer advisors
- Domain
- merceradvisors.com
- Industry
- Financial Services
Victim entity
- Name
- Mercer Advisors Inc.norm: mercer advisors
- Domain
- merceradvisors.com
- Industry
- Financial Services
- Industry
- Financial Servicesllm
Incident
- Discovered
- Aug 1, 2025
- Materiality determined
- —
- Notification sent
- Dec 16, 2025
- Affected individuals
- 1
- Data types
- PIIFINANCIAL
- Attack vector
- Unauthorized Access
- MITRE ATT&CK
- T1078 Valid Accounts
- Threat actor
- External
- Regulator citations
- Notified law enforcement per notice letter
- Third party
- via Tufton Capital Management
Compliance
- Time to disclose
- 19 weeks(136 days from discovery to filing)
- Compliance flags
- ME AG >90d · 136dME resident >60d · 137d
- Discovery-date grounding
- unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
- Clock breakdown
Statute Window Elapsed Threshold Status Maine Discovered: Aug 1, 2025→ Filed with AG: Dec 15, 2025136d 90 days ME AG >90d Maine Discovered: Aug 1, 2025→ Notified: Dec 16, 2025137d 60 days (analyst band; statutory cap is 30 days) ME resident >60d
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.