Social EngineeringProfessional ServicesProfessional ServicesPhishingEmployee Data InvolvedIdentity (basic)Government IDHealth (basic)EmploymentMediumContained

STEEL PARTNERS HOLDINGS L.P.

bd_d8b05cdca0e42362 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 29, 2020

Filed

Jun 29, 2020

To disclose

4 weeks

Affected

Not disclosed

Linked

8 filings

Confidence

67%

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

Steel Partners notified Delaware residents of a data breach involving unauthorized access to an employee's email account, likely via phishing. The incident exposed names, SSNs, DOBs, and health/disability information. Steel Partners locked the account, engaged forensic investigators, reset passwords, and implemented MFA. Affected individuals received two years of credit monitoring via Experian.

J jump to incidentP pin to compareR raw source

Incident timeline

discovery → filing · 4 weeks / 31 days

May 29, 2020

Discovered

Jun 29, 2020

Filed

vs. sector median

13 wks faster

This filing is one of 8 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (7) · sorted by filing gap

Montana State AGbd_6be8759b2eb0d3482020-06-29Candidate
South Carolina State AGbd_88361305fd97eb212020-06-29Verified
Indiana State AGbd_d1792ff303bb51542020-06-29Verified
Massachusetts State AGbd_25cb6bbe7680f0202020-07-16 · +17dVerified

Show 3 more filings ↓up to 34d gap

California State AGbd_d278d119b9afcdc02020-07-16 · +17dCandidate
New Hampshire State AGbd_d994bde2b3fef2842020-07-30 · +31dVerified
California State AGbd_3ca7167cc02cf4962020-08-02 · +34dVerified

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: Jun 29, 2020
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDHealth (basic)
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: Initiated an investigation
Locked the account
Engaged a forensic security firm to assist
Requiring a password reset for our employees
Implemented measures to help prevent similar attacks from happening in the future, including changes to our login process and implementing stricter multi-factor authentication rules
Conducted a broader review of our network
Offering you a complimentary two-year subscription to Experian IdentityWorks
Changes made: Implemented measures to help prevent similar attacks from happening in the future, including changes to our login process and implementing stricter multi-factor authentication rules
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(31 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 8 filings · 7 states

View merged incident ↗

Montana State AGJun 29 · first

South Carolina State AGJun 29 · first

Indiana State AGJun 29 · first

Delaware State AGJun 29 · first · this page

Massachusetts State AG+17d

California State AG+17d

New Hampshire State AG+31d

California State AG+34d

Pattern: first filing Jun 29 (MT), last Aug 2 (CA) — a 34-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://attorneygeneral.delaware.gov/wp-content/uploads/sites/50/2020/07/2020-06-29-Steel-Partners-Resident-Notification-Letter.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 29, 2020
Raw hash: 66650505c57b818c72035d16aa197987f32abcbe472830ed4a51866bff910fde

Linked disclosures

Regulatory filings (7) · sorted by filing gap

Reporting entitySTEEL PARTNERS HOLDINGS L.P.

Victim entitySTEEL PARTNERS HOLDINGS L.P.

Incidentdiscovered May 29, 2020

Stated responseInitiated an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceattorneygeneral.delaware.gov