HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedCustomer Data InvolvedBusiness Associate (HIPAA)PIIPHIIdentity (basic)Health (basic)LowContained

Orrick, Herrington & Sutcliffe LLP

bd_3fe3320cbc86fe1b · schema v1 · pii pii-v1

Severity

Low

Discovered

Mar 13, 2023

Filed

Aug 14, 2023

To disclose

22 weeks

Affected

Not disclosed

Linked

19 filings

Confidence

64%

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. Files containing personal information of plan participants, including health insurance data, were accessed. Orrick is a downstream service provider for MultiPlan, Inc. The firm engaged cybersecurity experts, notified law enforcement, and is offering two years of identity monitoring through Kroll.

J jump to incidentP pin to compareR raw source

California clockDiscovered Mar 13, 2023 → Notified Jun 1, 202380d ✗ CA 60-day late22 weeks discovery → filing

Incident timeline

undetected · 3 days

discovery → filing · 22 weeks / 154 days

Mar 10, 2023

Begins

Mar 13, 2023

Discovered

Aug 14, 2023

Filed

vs. sector median

+3 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

Oregon State AGbd_2219323be28eb8d72023-08-18 · +4dVerified
California State AGbd_27c346231339764a2023-08-18 · +4dVerified
Maine State AGbd_cc48c408ae3ef8942023-08-18 · +4dVerified
California State AGbd_13c2d48c6c504f772023-08-21 · +7dVerified

Show 6 more filings ↓up to 25d gap

New Hampshire State AGbd_196c4027e22ee5fd2023-08-21 · +7dVerified
California State AGbd_cbf3d3e27848f13e2023-07-31 · +14dVerified
South Carolina State AGbd_3e42b9abcb8898e52023-09-07 · +24dVerified
Indiana State AGbd_0c67b8b72d8d4d752023-07-20 · +25dVerified
Maine State AGbd_d10cdbb5d734268c2023-07-20 · +25dVerified
Maine State AGbd_e91b9e52ec6efee02023-07-20 · +25dVerified

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: Mar 10, 2023
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 1, 2023
Affected individuals: Not disclosed
Data types: PIIPHIIdentity (basic)Health (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated CollectionT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified the health insurance plan in which you are or were enrolled
Third party: via MultiPlan, Inc.

During the incident: Took immediate steps to block the unauthorized access
Launched an investigation 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: 22 weeks(154 days from discovery to filing)
Compliance flags: CA 60-day late · 80d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Mar 13, 2023
→ Notified: Jun 1, 2023
80d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Mar 13, 2023 → Notified: Jun 1, 2023	80d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

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 · this page

Oregon State AG+29d

California State AG+29d

Maine State AG+29d

California State AG+32d

New Hampshire State AG+32d

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/sb24-571820
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 14, 2023
Raw hash: 0d719f07fd3069972bcc2bfd7df600c044bb11b9e53b3cb6ae77317d41a266a6

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

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov