Social EngineeringProfessional ServicesProfessional ServicesPhishingBECStolen CredentialsCustomer Data InvolvedMulti-Stage ChainIdentity (basic)Government IDFinancial accountMediumContained

J.M. Forbes & Co.

bd_af0270378c395134 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 17, 2025

Filed

Apr 7, 2026

To disclose

20 weeks

Affected

Not disclosed

Linked

6 filings

Confidence

66%

Full breach record for J.M. Forbes & Co. →

JM Forbes & Co detected suspicious activity on its email system on November 17, 2025, which was determined to be a business email compromise attempt via social engineering. An unauthorized external party accessed an employee email account containing personal information, including names, addresses, Social Security numbers, and account numbers. The firm contained the incident before fraudulent transactions occurred. Affected individuals are offered two years of credit monitoring.

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Massachusetts clock✗ MA AG >90d20 weeks discovery → filing

Incident timeline

discovery → filing · 20 weeks / 141 days

Nov 17, 2025

Discovered

Apr 7, 2026

Filed

vs. sector median

+1 wks slower

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Vermont State AGbd_2d8fdc40759510b02026-04-07Candidate
New Hampshire State AGbd_66f15480d78ef9f62026-04-07Verified
Maine State AGbd_ba4b31877e8d09b12026-04-07Verified by operator
Nebraska State AGbd_98d54460da9f9c8f2026-07-06 · +90dVerified

Show 1 more filing ↓up to 90d gap

New Hampshire State AGbd_a5dc2e414705c04d2026-07-06 · +90dVerified

Name: J.M. Forbes & Co.
norm: jm forbes
Domain: jmforbes.com

Name: J.M. Forbes & Co.
norm: jm forbes
Domain: jmforbes.com
Industry: Professional Servicesllm

Discovered: Nov 17, 2025
Materiality determined: —
Notification sent: Apr 7, 2026
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial account
Attack vector: Unknown
MITRE ATT&CK: T1566 PhishingT1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Initial access: phishing_link

During the incident: Locked down the affected account
Launched an investigation with the assistance of outside legal counsel and cybersecurity forensic experts
Stopped the attempt before any fraudulent transactions could occur
Offering two years of complimentary credit monitoring services
Changes made: Maintain a strong control environment and robust compliance policies and procedures
Security monitoring, verification procedures and response protocols are designed to detect and address suspicious activity quickly
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 20 weeks(141 days from discovery to filing)
Compliance flags: MA AG >90d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 5 states

View merged incident ↗

Vermont State AGApr 7 · first

New Hampshire State AGApr 7 · first

Maine State AGApr 7 · first

Massachusetts State AGApr 7 · first · this page

Nebraska State AG+90d

New Hampshire State AG+90d

Pattern: first filing Apr 7 (VT), last Jul 6 (NH) — a 90-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.mass.gov/doc/2026-536-jm-forbes-co/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 7, 2026
Raw hash: 942859cd95ae4af7e02f7c59b36008bddf888819a80fd1f4361fd0a287779bda

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityJ.M. Forbes & Co.

Victim entityJ.M. Forbes & Co.

Incidentdiscovered Nov 17, 2025

Stated responseLocked down the affected account

ComplianceMA AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov