Social EngineeringFinancial ServicesTechnologyFinancePhishingBECTargetedCustomer Data InvolvedPIIIdentity (basic)LowContained

SEQUOIA CAPITAL OPERATIONS, LLC

bd_0b2d6ab6730d21c5 · schema v1 · pii pii-v1

Severity

Low

Discovered

Jan 20, 2021

Filed

Feb 18, 2021

To disclose

29 days

Affected

3state residents only

Linked

4 filings

Confidence

67%

Full breach record for SEQUOIA CAPITAL OPERATIONS, LLC →

Sequoia Capital Operations, LLC notified Montana residents of a cybersecurity incident discovered on January 20, 2021. An unauthorized third party gained remote access to an employee's business email mailbox via apparent phishing, aiming to conduct a wire diversion scam. The attacker may have accessed personal information contained in the mailbox. Sequoia engaged law enforcement and cybersecurity experts, secured the network, and offered 24 months of credit monitoring.

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Incident timeline

discovery → filing · 29 days

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

California State AGbd_0b393d1f5eeece3e2021-02-18Verified
New Hampshire State AGbd_2ba7b98b77580f2b2021-02-22 · +4dVerified
Massachusetts State AGbd_5fb61f16214b9b202021-02-22 · +4dVerified

Name: SEQUOIA CAPITAL OPERATIONS, LLC
norm: sequoia capital operations
Domain: sequoiacap.com

Name: SEQUOIA CAPITAL OPERATIONS, LLC
norm: sequoia capital operations
Domain: sequoiacap.com
Industry: Financial ServicesllmTechnologyllm

Discovered: Jan 20, 2021
Materiality determined: —
Notification sent: —
Affected individuals: 3state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: contacting law enforcement
Initial access: phishing_link

During the incident: Contacting law enforcement
Engaging 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
Offering credit monitoring and identity theft protection services through Experian for 24 months
Changes made: 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 ↗

California State AGFeb 18 · first

Montana 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://dojmt.gov/wp-content/uploads/seqSamp.pdf
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: a8bb4b3b6d377aa13d733141590e1d942c4611f88bb595599d947315e9b4610e

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entitySEQUOIA CAPITAL OPERATIONS, LLC

Victim entitySEQUOIA CAPITAL OPERATIONS, LLC

Incidentdiscovered Jan 20, 2021

Stated responseContacting law enforcement

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov