HackingProfessional ServicesProfessional ServicesCustomer Data InvolvedGovernment IDIdentity (basic)HighContained

Monroe, Sweeris & Tromp PLC

bd_d70c04b865459d0b · schema v1 · pii pii-v1

Severity

High

Discovered

Sep 1, 2020

Filed

Oct 5, 2020

To disclose

5 weeks

Affected · nationwide

1,5412 in this filing

Linked

2 filings

Confidence

64%

Full breach record for Monroe, Sweeris & Tromp PLC →

Monroe, Sweeris & Tromp PLC, a professional services firm based in Grand Rapids, MI, experienced an external system breach (hacking) between May 11 and May 14, 2020. The breach was discovered on September 1, 2020. The incident compromised the names and Social Security Numbers of 1,541 individuals, including 2 Maine residents. The firm notified affected individuals in writing on October 5, 2020, and offered 12 months of credit monitoring and identity restoration services through Experian.

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Maine clockDiscovered Sep 1, 2020 → Filed with AG Oct 5, 202034d ⏱ ME AG >30d5 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 · 113 days

discovery → filing · 5 weeks / 34 days

May 11, 2020

Begins

Sep 1, 2020

Discovered

Oct 5, 2020

Filed

vs. sector median

14 wks faster

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Indiana State AGbd_c4fae91e0c2a86e22020-10-05Verified

Name: Monroe, Sweeris & Tromp PLC
norm: monroe sweeris tromp
Domain: mstpc.com
Industry: professional_services

Name: Monroe, Sweeris & Tromp PLC
norm: monroe sweeris tromp
Domain: mstpc.com
Industry: professional_services
Industry: Professional Servicesllm

Discovered: Sep 1, 2020
Breach occurred: May 11, 2020 – May 14, 2020
Undetected for: 113 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 5, 2020
Affected individuals: 1,541state + nationwide
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Regulator citations: Filed data breach notice with Maine Attorney General
Initial access: exploit_public_facing

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

Time to disclose: 5 weeks(34 days from discovery to filing)
Compliance flags: ME AG >30d · 34d
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: Sep 1, 2020
→ Filed with AG: Oct 5, 2020
34d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Sep 1, 2020 → Filed with AG: Oct 5, 2020	34d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Indiana State AGOct 5 · first

Maine State AGOct 5 · first · this page

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/aca1da25-3f0a-45ac-9154-59b369fac90d.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 5, 2020
Raw hash: 5ae7eabc051041ec35c0ceb416c81bd0c44f6ad8fe2ba00994dda50b238f2400

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityMonroe, Sweeris & Tromp PLC

Victim entityMonroe, Sweeris & Tromp PLC

Incidentdiscovered Sep 1, 2020

Stated responseSent written notification to affected individuals

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov