HackingFinancial ServicesFinanceData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Tufton Capital Management

bd_d07d326962bb13df · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 30, 2025

Filed

Dec 15, 2025

To disclose

28 weeks

Affected · nationwide

6611 in this filing

Confidence

66%

Mercer Global Advisors Inc. reported a breach affecting Tufton Capital Management systems. Unauthorized access occurred May 15-16, 2025. Suspicious activity was detected in June 2025. 661 individuals affected, including 1 Maine resident. Personal info and government IDs compromised. Notices sent Dec 12, 2025.

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Maine clockDiscovered May 30, 2025 → Filed with AG Dec 15, 2025199d ✗ ME AG >90d28 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.

Incident timeline

undetected · 15 days

discovery → filing · 28 weeks / 199 days

May 15, 2025

Begins

May 30, 2025

Discovered

Dec 15, 2025

Filed

vs. sector median

+20 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed661 affectedView incident

Name: Mercer Advisors Inc.
norm: mercer advisors
Domain: merceradvisors.com
Industry: Financial Services

Name: Tufton Capital Management
norm: tufton capital management
Domain: merceradvisors.com
Industry: Financial Services
Industry: Financial Servicesllm

Discovered: May 30, 2025
Breach occurred: May 15, 2025 – May 16, 2025
Undetected for: 15 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 12, 2025
Affected individuals: 661state + nationwide
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: External
Regulator citations: Notified law enforcement
Initial access: exploit_public_facing

During the incident: Engaged leading third-party cybersecurity experts to investigate and implement remediation measures
Engaged a data-review firm to analyze files' contents for private information
Notified law enforcement
Notified custodians (financial institutions holding assets)
Changes made: Further secured Tufton Capital's systems
Offering 12-month membership to Experian IdentityWorks
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 28 weeks(199 days from discovery to filing)
Compliance flags: ME AG >90d · 199dME resident >180d · 196d
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: May 30, 2025
→ Filed with AG: Dec 15, 2025
199d 90 days ME AG >90d
Maine
Discovered: May 30, 2025
→ Notified: Dec 12, 2025
196d 180 days ME resident >180d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: May 30, 2025 → Filed with AG: Dec 15, 2025	199d	90 days	ME AG >90d
Maine	Discovered: May 30, 2025 → Notified: Dec 12, 2025	196d	180 days	ME resident >180d

Status: No extraction artifact recorded for this disclosure.

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-a1252b4f8318/233d11bb-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: 4ac1c46619a6d2b5da3ca130c8b3ba87b715c034d10891fb14c557554134a2a6

Reporting entityMercer Advisors Inc.

Victim entityTufton Capital Management

Incidentdiscovered May 30, 2025

Stated responseEngaged leading third-party cybersecurity experts to investigate and implement remediation measures

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov