HackingProfessional ServicesProfessional ServicesStolen CredentialsDelayed DiscoveryPIIIdentity (basic)MediumContained

Stewart Property Management, Inc.

bd_b78db25de731a8cd · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 12, 2024

Filed

May 12, 2025

To disclose

22 weeks

Affected

1,938state residents only

Linked

4 filings

Confidence

66%

Full breach record for Stewart Property Management, Inc. →

Stewart Property Management, Inc. notified the New Hampshire Attorney General of a data breach involving unauthorized access to an employee email account between December 3-13, 2024. The incident was discovered on December 12, 2024. Notifications were sent to 1,938 affected New Hampshire residents on May 6, 2025, offering credit monitoring services.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 9 days

discovery → filing · 22 weeks / 151 days

Dec 3, 2024

Begins

Dec 12, 2024

Discovered

May 12, 2025

Filed

vs. sector median

+4 wks slower

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Massachusetts State AGbd_8d4dc46d302cb9552025-05-07 · +5dVerified
Vermont State AGbd_2b4b0fe2a8b1bf752025-05-06 · +6dVerified
Maine State AGbd_d325e5ef7613c93d2025-05-06 · +6dCandidate

Name: Stewart Property Management, Inc.
norm: stewart property management

Name: Stewart Property Management, Inc.
norm: stewart property management
Industry: Professional Servicesllm

Discovered: Dec 12, 2024
Breach occurred: Dec 3, 2024 – Dec 13, 2024
Undetected for: 9 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 6, 2025
Affected individuals: 1,938state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Performing a password reset
Engaging a third-party forensic team to conduct a thorough investigation
Changed account passwords and reset active sessions
Offering the potentially impacted individuals complimentary credit monitoring and identity protection services
Changes made: Offering complimentary credit monitoring and identity protection services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 22 weeks(151 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Vermont State AGMay 6 · first

Maine State AGMay 6 · first

Massachusetts State AG+1d

New Hampshire State AG+6d · this page

Pattern: first filing May 6 (VT), last May 12 (NH) — a 6-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://mm.nh.gov/files/uploads/doj/remote-docs/stewart-property-management-20250512.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 12, 2025
Raw hash: 1623d29d27b162a7f59daf1dbebe6480cd07bc4913aa58700e12d081e0b511a5

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityStewart Property Management, Inc.

Victim entityStewart Property Management, Inc.

Incidentdiscovered Dec 12, 2024

Stated responsePerforming a password reset

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov