Social EngineeringPIIIdentity (basic)Government IDHealth (basic)MediumContained

M Advisory Group

bd_36e242ad9e345631 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Oct 20, 2025

Filed

Jul 21, 2026

To disclose

39 weeks

Affected

Not disclosed

Linked

3 filings

Confidence

66%

Full breach record for M Advisory Group →

M Advisory Group notified Massachusetts residents of a data security incident discovered on October 20, 2025, involving unauthorized third-party access to an email environment. Compromised data included names, Social Security Numbers/ITINs, and Medical/Health Information. The company engaged forensic experts, secured the environment, and offered 24 months of credit monitoring services.

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Massachusetts clock✗ MA AG >90d39 weeks discovery → filing

Incident timeline

discovery → filing · 39 weeks / 274 days

Oct 20, 2025

Discovered

Jul 21, 2026

Filed

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

New Hampshire State AGbd_e69d41fb78b139bd2026-07-20 · +1dVerified
Nebraska State AGbd_b64ffecc9438fcf12026-07-02 · +19dVerified

Name: M Advisory Group
norm: m advisory

Name: M Advisory Group
norm: m advisory

Discovered: Oct 20, 2025
Materiality determined: —
Notification sent: Jul 2, 2026
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)Government IDHealth (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: External
Initial access: phishing_link

During the incident: Secured and remediated the compromise
Engaged additional third-party experts
Commenced an investigation
Hardened and enhanced our network security
Conducted a digital forensic investigation
Providing you with access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services through Cyberscout
Providing you with proactive fraud assistance
Changes made: Enhancing our cyber preparedness through additional awareness training
Updating our procedures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 39 weeks(274 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 · 3 filings · 3 states

View merged incident ↗

Nebraska State AGJul 2 · first

New Hampshire State AG+18d

Massachusetts State AG+19d · this page

Pattern: first filing Jul 2 (NE), last Jul 21 (MA) — a 19-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/2026-1194-m-advisory-group/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 21, 2026
Raw hash: 1b44b8a8eac22afa6745da9ae216b268405cc14a170a0580893106eb6d5c1900

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityM Advisory Group

Victim entityM Advisory Group

Incidentdiscovered Oct 20, 2025

Stated responseSecured and remediated the compromise

ComplianceMA AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov