HackingProfessional ServicesProfessional ServicesSupply Chain (3P Vendor)Data ExfiltratedIdentity (basic)LowActive

Postlethwaite & Netterville APAC

bd_9aa920d6f428db58 · schema v1 · pii pii-v1

Severity

Low

Discovered

Mar 21, 2021

Filed

Nov 8, 2021

To disclose

33 weeks

Affected

1state residents only

Linked

5 filings

Confidence

66%

Full breach record for Postlethwaite & Netterville APAC →3 incidents on file

Postlethwaite & Netterville APAC notified individuals of a data breach involving the Accellion file transfer appliance. Unauthorized access occurred on Jan 21, 2021, affecting TRT settlement program data. 10 Rhode Island residents impacted. PII included names. Identity theft protection offered.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 59 days

discovery → filing · 33 weeks / 232 days

Jan 21, 2021

Begins

Mar 21, 2021

Discovered

Nov 8, 2021

Filed

vs. sector median

+14 wks slower

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

Part of Accellion supply-chain incident (2021) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

New Hampshire State AGbd_960f1056c3a5a1dc2021-11-09 · +1dVerified by operator
Maine State AGbd_1d03fb9fe352ce272021-09-16 · +53dCandidate
Montana State AGbd_6fe5ce08759000b22021-08-05 · +95dVerified by operator
Indiana State AGbd_4c643d6e53845e502021-06-21 · +140dVerified by operator

Name: Postlethwaite & Netterville APAC
norm: postlethwaite netterville apac

Name: Postlethwaite & Netterville APAC
norm: postlethwaite netterville apac
Industry: Professional Servicesllm

Discovered: Mar 21, 2021
Breach occurred: Jan 21, 2021
Undetected for: 59 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 4, 2021
Affected individuals: 1state-resident count only
Data types: Identity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Third party: via Accellion, Inc.
Initial access: supply_chain

During the incident: Launched an in-depth investigation
Migrated all data off of the vulnerable Accellion file transfer appliance
Contacted law enforcement
Offering identity theft protection services through IDX
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 33 weeks(232 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 4 states

View merged incident ↗

Indiana State AGJun 21 · first

Montana State AG+45d

Maine State AG+87d

Montana State AG+140d · this page

New Hampshire State AG+141d

Pattern: first filing Jun 21 (IN), last Nov 9 (NH) — a 141-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://dojmt.gov/wp-content/uploads/OCP/Consumer-Notification-Letter-61.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 8, 2021
Raw hash: 33bc9e16e16c0d8c09e20ab399bb4ac2a17da2462c8d4f3deb99654f2c76fdb2

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityPostlethwaite & Netterville APAC

Victim entityPostlethwaite & Netterville APAC

Incidentdiscovered Mar 21, 2021

Stated responseLaunched an in-depth investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov