Social EngineeringProfessional ServicesProfessional ServicesPhishingData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)HighContained

Corvias Group LLC

bd_6115c9eaacbab0cb · schema v1 · pii pii-v1

Severity

High

Discovered

Sep 5, 2023

Filed

Oct 6, 2023

To disclose

4 weeks

Affected · nationwide

3,8192 in this filing

Linked

4 filings

Confidence

66%

Full breach record for Corvias Group LLC →2 incidents on file

Corvias Group LLC reported a phishing incident on April 18, 2023, discovered on September 5, 2023. The breach compromised names and Social Security Numbers of 3,819 individuals, including 2 Maine residents. Corvias provided 12 months of credit monitoring via Experian and filed a notice with the Maine Attorney General.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Sep 5, 2023 → Filed with AG Oct 6, 202331d ⏱ ME AG >30d4 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 140 days

discovery → filing · 4 weeks / 31 days

Apr 18, 2023

Begins

Sep 5, 2023

Discovered

Oct 6, 2023

Filed

vs. sector median

14 wks faster

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

Montana State AGbd_3bccdf7767ea26f92023-10-05 · +1dCandidate
Indiana State AGbd_c12fc1b13e1d6e462023-10-05 · +1dVerified
New Hampshire State AGbd_2380f780a214ec312023-10-10 · +4dVerified

Name: MCDONALD HOPKINS LLC
norm: mcdonald hopkins

Name: Corvias Group LLC
norm: corvias group
Industry: Professional Servicesllm

Discovered: Sep 5, 2023
Breach occurred: Apr 18, 2023
Undetected for: 140 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 5, 2023
Affected individuals: 3,819state + nationwide
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: ExternalFinancial
Regulator citations: Filed data breach notice with Maine Attorney General
Initial access: phishing_link

During the incident: Sent written notification to affected individuals
Offered 12 months credit monitoring through Experian
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(31 days from discovery to filing)
Compliance flags: ME AG >30d · 31d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Sep 5, 2023
→ Filed with AG: Oct 6, 2023
31d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Sep 5, 2023 → Filed with AG: Oct 6, 2023	31d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Montana State AGOct 5 · first

Indiana State AGOct 5 · first

Maine State AG+1d · this page

New Hampshire State AG+5d

Pattern: first filing Oct 5 (MT), last Oct 10 (NH) — a 5-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.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/0f2c8ad5-57ff-47e7-9778-d73d9d09afa9.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 6, 2023
Raw hash: 8206b70f11fbcfcd6905a230bd4b8618a33de0d368834ca3f3232588760e5dab

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityMCDONALD HOPKINS LLC

Victim entityCorvias Group LLC

Incidentdiscovered Sep 5, 2023

Stated responseSent written notification to affected individuals

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov