HackingProfessional ServicesProfessional ServicesCustomer Data InvolvedIdentity (basic)Government IDHigh

Proskauer Rose LLP

bd_827b17e0441a5968 · schema v1 · pii pii-v1

Severity

High

Discovered

Apr 4, 2023

Filed

Aug 18, 2023

To disclose

19 weeks

Affected · nationwide

7,2366 in this filing

Linked

5 filings

Confidence

65%

Full breach record for Proskauer Rose LLP →2 incidents on file

Proskauer Rose LLP reported an external system breach that occurred between November 1, 2022, and March 15, 2023. The breach was discovered on April 4, 2023, and affected 7,236 individuals. The compromised information included names and Social Security numbers. Affected individuals were notified in writing on August 18, 2023, and offered 24 months of credit monitoring and identity restoration services through Experian.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Apr 4, 2023 → Filed with AG Aug 18, 2023136d ✗ ME AG >90d19 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 · 154 days

discovery → filing · 19 weeks / 136 days

Nov 1, 2022

Begins

Apr 4, 2023

Discovered

Aug 18, 2023

Filed

vs. sector median

+2 wks slower

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Indiana State AGbd_0458d733693715562023-08-18Verified
Massachusetts State AGbd_358f7c0dabbae2602023-08-18Verified
Montana State AGbd_3e9c0853d95b83012023-08-18Candidate
Vermont State AGbd_e6cefb004a1df96d2023-08-18Verified

Name: Proskauer Rose LLP
norm: proskauer rose

Name: Proskauer Rose LLP
norm: proskauer rose
Industry: Professional Servicesllm

Discovered: Apr 4, 2023
Breach occurred: Nov 1, 2022 – Mar 15, 2023
Undetected for: 154 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 18, 2023
Affected individuals: 7,236state + nationwide
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
Threat actor: External

During the incident: Sent written notification to affected consumers on 08/18/2023.
Changes made: Offered 24 months of credit monitoring and identity restoration services from Experian.
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 19 weeks(136 days from discovery to filing)
Compliance flags: ME AG >90d · 136dME resident >60d · 136d
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: Apr 4, 2023
→ Filed with AG: Aug 18, 2023
136d 90 days ME AG >90d
Maine
Discovered: Apr 4, 2023
→ Notified: Aug 18, 2023
136d 60 days (analyst band; statutory cap is 30 days) ME resident >60d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Apr 4, 2023 → Filed with AG: Aug 18, 2023	136d	90 days	ME AG >90d
Maine	Discovered: Apr 4, 2023 → Notified: Aug 18, 2023	136d	60 days (analyst band; statutory cap is 30 days)	ME resident >60d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Indiana State AGAug 18 · first

Massachusetts State AGAug 18 · first

Montana State AGAug 18 · first

Vermont State AGAug 18 · first

Maine State AGAug 18 · 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/dcbc5ed5-2d0e-49aa-bf2b-53cdd3342a19.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 18, 2023
Raw hash: e4b3806e849675a1a9528544e20d6685aaeb6245f2a722ab30b0094ef7b06215

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityProskauer Rose LLP

Victim entityProskauer Rose LLP

Incidentdiscovered Apr 4, 2023

Stated responseSent written notification to affected consumers on 08/18/2023.

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov