HackingProfessional ServicesProfessional ServicesStolen CredentialsCustomer Data InvolvedDelayed DiscoveryPHIHealth (basic)Identity (basic)LowContained

Orrick, Herrington & Sutcliffe LLP

bd_13c2d48c6c504f77 · schema v1 · pii pii-v1

Severity

Low

Discovered

Mar 13, 2023

Filed

Aug 21, 2023

To disclose

23 weeks

Affected

Not disclosed

Linked

19 filings

Confidence

65%

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

Orrick, Herrington & Sutcliffe LLP experienced a security incident where an unauthorized third party gained remote access to a portion of its network on March 10, 2023. The breach was detected on March 13, 2023. The incident involved personal information of plan participants, including health insurance data (PHI), stored in connection with Orrick's representation of MultiPlan, Inc. Orrick blocked access, engaged forensic experts, notified law enforcement, and is offering two years of identity monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 13 days

discovery → filing · 23 weeks / 161 days

Feb 28, 2023

Begins

Mar 13, 2023

Discovered

Aug 21, 2023

Filed

vs. sector median

+4 wks slower

This filing is one of 19 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

New Hampshire State AGbd_196c4027e22ee5fd2023-08-21Verified
Oregon State AGbd_2219323be28eb8d72023-08-18 · +3dVerified
California State AGbd_27c346231339764a2023-08-18 · +3dVerified
Maine State AGbd_cc48c408ae3ef8942023-08-18 · +3dVerified

Show 6 more filings ↓up to 32d gap

California State AGbd_3fe3320cbc86fe1b2023-08-14 · +7dVerified
South Carolina State AGbd_3e42b9abcb8898e52023-09-07 · +17dVerified
California State AGbd_cbf3d3e27848f13e2023-07-31 · +21dVerified
Indiana State AGbd_0c67b8b72d8d4d752023-07-20 · +32dVerified
Maine State AGbd_d10cdbb5d734268c2023-07-20 · +32dVerified
Maine State AGbd_e91b9e52ec6efee02023-07-20 · +32dVerified

Showing first 10 of 18 linked disclosures.

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 10, 2023
Undetected for: 13 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PHIHealth (basic)Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: External

During the incident: Took immediate steps to block the unauthorized access
Launched an investigation of the incident with the support of leading outside cybersecurity experts
Notified law enforcement
Offering two years of complimentary identity monitoring services through Kroll
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: 23 weeks(161 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 6 states

View merged incident ↗

Indiana State AGJul 20 · first

Maine State AGJul 20 · first

California State AG+11d

California State AG+25d

Oregon State AG+29d

California State AG+29d

Maine State AG+29d

New Hampshire State AG+32d

California State AG+32d · this page

South Carolina State AG+49d

Pattern: first filing Jul 20 (IN), last Sep 7 (SC) — a 49-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 18 — the full spread may be wider.

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://oag.ca.gov/ecrime/databreach/reports/sb24-572159
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 21, 2023
Raw hash: 702878261d119326998c9065b8b155586dd30dce5e200d631b16db3bc29417ca

Linked disclosures

Regulatory filings (10) · 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 provenanceoag.ca.gov