Clustered 5 filings across 4 jurisdictions · filing window Jun 29, 2020 → Aug 2, 2020. View entity profile → Other incidents for this victim →
incident inc_0a1a7978a8324ba9 · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
CA DE MT SC
Time between earliest and latest filing
Not recorded for this incident
Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster.
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Apr 18, 2020
When the intrusion reportedly occurred, per the linked filings
May 29, 2020
Reported by SOUTH CAROLINA AG, DELAWARE AG filings
About this clustering
DisclosureLens links filings into incidents through layered matchers: deterministic rules (same source document, multistate filings of one breach, tight-window same-victim pairs), a weighted-similarity scorer for cross-source candidates, and an operator review queue for everything uncertain. Each link records its own method and confidence — shown per filing in the timeline below. The system defaults to NOT merging when uncertain, because a false merge (collapsing two unrelated breaches) is more harmful than a false split (showing related filings separately); uncertain pairs route to human review instead of auto-merging. Filing summaries shown in the timeline are AI-generated extracts — verify each against its linked source.
Steel Partners Holdings L.P. reported a data breach to the Montana Attorney General. The breach was reported on 2020-06-29. The breach occurred from 4/18/2020 to 4/29/2020. 159 Montana residents were affected.
Affected (this filing): 159
Steel Partners Holdings LP notified South Carolina residents of a data breach involving unauthorized access to an employee's email account. The incident, discovered in May 2020, exposed personal information including names, Social Security numbers, dates of birth, and health information related to disability or workers' compensation claims. Steel Partners locked the account, engaged forensic investigators, reset passwords, and implemented stricter multi-factor authentication. Affected individuals were offered two years of credit monitoring via Experian IdentityWorks.
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.
Steel Partners discovered unauthorized access to one employee email account, allowing a local download of the entire mailbox. The breach occurred April 18–29, 2020, with PII determined to be involved on May 29, 2020. Exposed data included names, SSNs, dates of birth, and health information (disability/workers' compensation). Notification letters were sent June 29, 2020, with two-year Experian IdentityWorks credit monitoring offered.
Steel Partners Holdings L.P. disclosed unauthorized access to one employee email account between April 18–29, 2020. The intrusion allowed a local download of the entire mailbox, which contained documents with names, SSNs, dates of birth, and health information (disability/workers' compensation) for employees, beneficiaries, and pension plan participants across numerous Steel Partners portfolio companies and pension plans. Steel Partners engaged a forensic firm, locked the account, required password resets, and implemented MFA improvements.