HackingFinancial ServicesFinanceStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedPIIIdentity (basic)MediumContained

SEQUOIA CAPITAL OPERATIONS, LLC

bd_0b393d1f5eeece3e · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jan 20, 2021

Filed

Feb 18, 2021

To disclose

29 days

Affected

1,000state residents only

Linked

4 filings

Confidence

66%

Full breach record for SEQUOIA CAPITAL OPERATIONS, LLC →

Sequoia Capital Operations, LLC notified the California AG of a cybersecurity incident where an unauthorized third party gained remote access to one employee's business email mailbox on or about January 20, 2021. The apparent aim was a wire diversion scam. The breach date listed on the form is January 7, 2021. Fewer than 1,000 California residents were affected. Personal information including names and potentially other PII was exposed. The company engaged cybersecurity experts, remediated the configuration issue, enhanced security protections, and offered 24 months of credit monitoring.

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Incident timeline

undetected · 13 days

discovery → filing · 29 days

Jan 7, 2021

Begins

Jan 20, 2021

Discovered

Feb 18, 2021

Filed

vs. sector median

4 wks faster

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

Montana State AGbd_0b2d6ab6730d21c52021-02-18Candidate
New Hampshire State AGbd_2ba7b98b77580f2b2021-02-22 · +4dVerified
Massachusetts State AGbd_5fb61f16214b9b202021-02-22 · +4dVerified

Name: SEQUOIA CAPITAL OPERATIONS, LLC
norm: sequoia capital operations

Name: SEQUOIA CAPITAL OPERATIONS, LLC
norm: sequoia capital operations
Industry: Financial Servicesllm

Discovered: Jan 20, 2021
Breach occurred: Jan 7, 2021
Undetected for: 13 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 1,000state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: Contacted law enforcement
Initial access: valid_credentials

During the incident: Contacted law enforcement
Engaged outside cybersecurity experts to help remediate and ensure the ongoing security of our systems
Identified and remediated the configuration that permitted the initial access
Deployed additional prevention and detection technology at multiple layers to improve visibility into anomalous user activity and malicious email content
Reviewed the methods we use to store and share sensitive information inside and outside the company, including email message forwarding rules
Refreshed our security training with additional emphasis on phishing awareness and proper data handling
Conducted dark web monitoring to determine whether any of the data from the business email mailbox is being sold or traded by cyber criminals
Offering credit monitoring and identity theft protection services through Experian for 24 months, free of charge
Changes made: Enhanced cybersecurity protections throughout our environment to detect any future anomalous activity
Identified and remediated the configuration that permitted the initial access
Deployed additional prevention and detection technology at multiple layers to improve visibility into anomalous user activity and malicious email content
Reviewed the methods we use to store and share sensitive information inside and outside the company, including email message forwarding rules
Refreshed our security training with additional emphasis on phishing awareness and proper data handling
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 29 days(29 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 · 4 states

View merged incident ↗

Montana State AGFeb 18 · first

California State AGFeb 18 · first · this page

New Hampshire State AG+4d

Massachusetts State AG+4d

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/sb24-538102
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 18, 2021
Raw hash: 43c0d8be0a1221308b439c18f06a6383661e5daa940e27de84e004d745252174

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entitySEQUOIA CAPITAL OPERATIONS, LLC

Victim entitySEQUOIA CAPITAL OPERATIONS, LLC

Incidentdiscovered Jan 20, 2021

Stated responseContacted law enforcement

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov