HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedCustomer Data InvolvedMulti-Stage ChainPIIIdentity (basic)LowContained

Orrick, Herrington & Sutcliffe LLP

bd_495af8b2c9c47aa2 · schema v1 · pii pii-v1

Severity

Low

Discovered

Mar 13, 2023

Filed

Jan 5, 2024

To disclose

43 weeks

Affected

406state residents only

Linked

4 filings

Confidence

66%

Full breach record for Orrick, Herrington & Sutcliffe LLP →9 incidents on file

Orrick, Herrington & Sutcliffe LLP filed a supplemental notice with the New Hampshire Attorney General regarding a security incident detected on March 13, 2023. An unauthorized third party gained remote access to a file share containing client files between February 28 and March 13, 2023. The breach affected approximately 406 New Hampshire individuals, exposing personal information. Orrick engaged third-party cybersecurity experts, notified law enforcement, and offered two years of complimentary identity monitoring services.

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Incident timeline

undetected · 13 days

discovery → filing · 43 weeks / 298 days

Feb 28, 2023

Begins

Mar 13, 2023

Discovered

Jan 5, 2024

Filed

vs. sector median

+24 wks slower

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

California State AGbd_0cda4366c590210b2023-12-28 · +8dCandidate
Maine State AGbd_4077fe815e7521ca2024-01-24 · +19dVerified
California State AGbd_2ee611114ebad3622023-11-09 · +57dCandidate

Name: Orrick, Herrington & Sutcliffe LLP
norm: orrick herrington sutcliffe
Domain: orrick.com

Name: Orrick, Herrington & Sutcliffe LLP
norm: orrick herrington sutcliffe
Domain: orrick.com
Industry: Professional Servicesllm

Discovered: Mar 13, 2023
Breach occurred: Feb 28, 2023 – Mar 13, 2023
Undetected for: 13 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 1, 2023
Affected individuals: 406state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: External
Regulator citations: Notified New Hampshire Office of the Attorney General
Initial access: exploit_public_facing

During the incident: Took immediate steps to block the unauthorized access
Launched an investigation of the incident with the support of third party cybersecurity experts
Notified law enforcement
Informed clients and their customers about the incident
Worked with the clients to identify individuals with affected data and their contact information
Provided contact information to the customers in early June
Notified impacted health plans
Offered two years of complimentary identity monitoring services
Established a dedicated call center to answer questions
Deployed additional security measures and tools with the guidance of third-party experts
Changes made: Deployed additional security measures and tools with the guidance of third-party experts to strengthen the ongoing security of its network
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 43 weeks(298 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 3 states

View merged incident ↗

California State AGNov 9 · first

California State AG+49d

New Hampshire State AG+57d · this page

Maine State AG+76d

Pattern: first filing Nov 9 (CA), last Jan 24 (ME) — a 76-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://mm.nh.gov/files/uploads/doj/remote-docs/orrick-herrington-sutcliffe-20240105.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 5, 2024
Raw hash: da9c7dd277a31c4fd348c4a5c068862ba2d0a67f8efd24e25c3be2e4439aef34

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityOrrick, Herrington & Sutcliffe LLP

Victim entityOrrick, Herrington & Sutcliffe LLP

Incidentdiscovered Mar 13, 2023

Stated responseTook immediate steps to block the unauthorized access

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov