HackingProfessional ServicesProfessional ServicesTargetedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

CES Group Engineers, LLP

bd_13aa5da49372af8e · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 21, 2025

Filed

Dec 16, 2025

To disclose

17 weeks

Affected · nationwide

1301 in this filing

Confidence

66%

Full breach record for CES Group Engineers, LLP →

CES Group Engineers, LLP reported an external system breach (hacking) affecting 130 individuals, including 1 Maine resident. Unauthorized access occurred between August 20-21, 2025. Impacted data included names and driver's license numbers. Notices were sent on December 16, 2025, offering 12 months of credit monitoring.

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Maine clockDiscovered Aug 21, 2025 → Filed with AG Dec 16, 2025117d ⏱ ME AG >30d17 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 · 1 days

discovery → filing · 17 weeks / 117 days

Aug 20, 2025

Begins

Aug 21, 2025

Discovered

Dec 16, 2025

Filed

vs. sector median

3 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed130 affectedView incident

Name: CES Group Engineers, LLP
norm: ces group engineers
Domain: ces-group.net

Name: CES Group Engineers, LLP
norm: ces group engineers
Domain: ces-group.net
Industry: Professional Servicesllm

Discovered: Aug 21, 2025
Breach occurred: Aug 20, 2025 – Aug 21, 2025
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Dec 16, 2025
Affected individuals: 130state + nationwide
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Regulator citations: Notified applicable state regulators
Initial access: exploit_public_facing

During the incident: Launched an investigation to determine the nature and scope of the activity
Undertook a detailed review of all the files potentially impacted
Notified law enforcement and applicable state regulators
Enhanced its existing security protocols
Providing access to credit monitoring services one (1) year, through CyEx, to individuals whose personal information was potentially affected by this incident, at no cost to these individuals
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Changes made: Enhanced its existing security protocols
Continues to evaluate its policies and procedures related to data privacy and security
Working to implement additional safeguards
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 weeks(117 days from discovery to filing)
Compliance flags: ME AG >30d · 117d
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 21, 2025
→ Filed with AG: Dec 16, 2025
117d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Aug 21, 2025 → Filed with AG: Dec 16, 2025	117d	30 days (soft)	ME AG >30d

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-a1252b4f8318/16fa9da9-a0ed-4b2e-b4d9-f2cfd2a83c37.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 16, 2025
Raw hash: aaa079894c21ab6511c17a294773d519887b9583447e77768194abbcf8c8970a

Reporting entityCES Group Engineers, LLP

Victim entityCES Group Engineers, LLP

Incidentdiscovered Aug 21, 2025

Stated responseLaunched an investigation to determine the nature and scope of the activity

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov