MalwareFinancial ServicesFinanceRansomwarePhishingData ExfiltratedData EncryptedMulti-Stage ChainCustomer Data InvolvedPIIIdentity (basic)LowContained

Insight Partners

bd_64d25387317d3825 · schema v1 · pii pii-v1

Severity

Low

Discovered

Jan 16, 2025

Filed

Sep 15, 2025

To disclose

35 weeks

Affected

Not disclosed

Linked

5 filings

Confidence

65%

Full breach record for Insight Partners →

Insight Partners experienced a data breach where a threat actor used social engineering to gain access to HR and finance servers on October 25, 2024. The actor exfiltrated data and began encrypting servers on January 16, 2025, when the incident was detected. Insight Partners contained the incident, expelled the actor, and rebuilt affected systems. Personal data including identity information was compromised.

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Incident timeline

undetected · 83 days

discovery → filing · 35 weeks / 242 days

Oct 25, 2024

Begins

Jan 16, 2025

Discovered

Sep 15, 2025

Filed

vs. sector median

+26 wks slower

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Massachusetts State AGbd_ed83b9a5a169ec552025-09-15Verified
Montana State AGbd_9d7c277529584d2a2025-09-16 · +1dVerified
Maine State AGbd_df923439e078e2f62025-09-16 · +1dCandidate
Texas State AGbd_b3e25a6576fabdc12025-09-18 · +3dVerified

Name: Insight Partners
norm: insight partners
Domain: insightpartners.com

Name: Insight Partners
norm: insight partners
Domain: insightpartners.com
Industry: Financial Servicesllm

Discovered: Jan 16, 2025
Breach occurred: Oct 25, 2024 – Oct 25, 2024
Undetected for: 83 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1566 PhishingT1041 Exfiltration Over C2 ChannelT1486 Data Encrypted for Impact
Threat actor: External
Regulator citations: Notified law enforcement and regulatory authorities in relevant jurisdictions
Initial access: phishing_link

During the incident: Working with third party investigators and cybersecurity experts
Contain and remediate the incident
Expel the threat actor from Insight Partners’ systems
Notified law enforcement and regulatory authorities in relevant jurisdictions
Changes made: Implemented necessary security measures to re-secure affected systems
Addressed the misconfiguration that allowed the threat actor to gain access
Rebuilt compromised machines and all affected servers
Strengthened internal security and system access requirements
Offering complimentary Equifax WebDefend membership
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 35 weeks(242 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Massachusetts State AGSep 15 · first

California State AGSep 15 · first · this page

Montana State AG+1d

Maine State AG+1d

Texas State AG+3d

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/sb24-609988
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 15, 2025
Raw hash: 3c6d77752fed28c2b73043f9671dd06a27c6bd86005260ed01aa657d795ace58

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityInsight Partners

Victim entityInsight Partners

Incidentdiscovered Jan 16, 2025

Stated responseWorking with third party investigators and cybersecurity experts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov