One linked filing — more sources may join as they report · filed Apr 13, 2023. View entity profile → Other incidents for this victim →
incident inc_c30746c7a67d4bd5 · merge_method deterministic
Discovered → first regulatory filing
Discovery to SEC materiality determination
PII · IP / system
Materiality determination to SEC 8-K filing
Not recorded for this incident
Discovery variance · Leak precedence · Filing span — no leak-site claim in this cluster; needs two dated filings.
FEDERAL
all SEC 8-K
Earliest sighting first · deep chronology in Litigation Timeline
Apr 6, 2023
When the intrusion reportedly occurred, per the linked filings
Apr 6, 2023
Reported by SEC 8-K filing
Apr 13, 2023
Registrant determined the incident material — starts the SEC 4-business-day clock
Enzo Biochem, Inc. disclosed a ransomware attack on April 6, 2023, impacting IT systems. The company disconnected systems, engaged third-party experts, and activated its disaster recovery plan. On April 11, 2023, the company confirmed data was extracted. Operations continued via backup processes, though laboratory specimen processing was delayed. Investigation and impact assessment were ongoing at the time of filing.
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.