Social EngineeringProfessional ServicesProfessional ServicesPhishingCustomer Data InvolvedData ExfiltratedIdentity (basic)Government IDPHIMediumContained

STEEL PARTNERS HOLDINGS L.P.

bd_c1e5dd2891c573cf · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 29, 2020

Filed

Nov 17, 2020

To disclose

25 weeks

Affected

3state residents only

Linked

2 filings

Confidence

67%

Full breach record for STEEL PARTNERS HOLDINGS L.P. →2 incidents on file

Steel Partners Holdings L.P. filed a supplemental notification with the New Hampshire Attorney General regarding a phishing incident affecting a single employee's email account. The breach exposed personal information (names, SSNs, DOBs) and health data of 3 New Hampshire residents. Steel Partners engaged forensic investigators, locked the account, reset passwords, implemented MFA, and offered two years of credit monitoring.

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Incident timeline

discovery → filing · 25 weeks / 172 days

May 29, 2020

Discovered

Nov 17, 2020

Filed

vs. sector median

+5 wks slower

This filing is one of 2 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

California State AGbd_d56f926d012676aa2020-11-23 · +6dVerified

Name: STEEL PARTNERS HOLDINGS L.P.
norm: steel partners

Name: STEEL PARTNERS HOLDINGS L.P.
norm: steel partners
Industry: Professional Servicesllm

Discovered: May 29, 2020
Materiality determined: —
Notification sent: Nov 17, 2020
Affected individuals: 3state-resident count only
Data types: Identity (basic)Government IDPHI
Data elements: Social Security numberDate of birth
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: ExternalFinancial
Initial access: phishing_link

During the incident: Engaged a forensic security firm to assist
Locked the account
Notified all three national credit reporting agencies
Offered two years of free credit monitoring through Experian IdentityWorks
Created a call center
Changes made: Required a password reset for employees
Implemented changes to login process
Implemented stricter multi-factor authentication rules
Conducted a broader review of network
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 25 weeks(172 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

New Hampshire State AGNov 17 · first · this page

California State AG+6d

Pattern: first filing Nov 17 (NH), last Nov 23 (CA) — a 6-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://mm.nh.gov/files/uploads/doj/remote-docs/steel-partners-holdings-20201117.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 17, 2020
Raw hash: a822d96a9b1e93b640deeda517ef9d365fddb61369f9295f8ea8b5de2fd9f1de

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entitySTEEL PARTNERS HOLDINGS L.P.

Victim entitySTEEL PARTNERS HOLDINGS L.P.

Incidentdiscovered May 29, 2020

Stated responseEngaged a forensic security firm to assist

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov