---
schema_version: "secwatch.filing_event.v1"
accession: "0001539497-25-000735"
form_type: "8-K"
ticker: "NB"
cik: "0001512228"
company_name: "NIOCORP DEVELOPMENTS LTD"
filed_at: "2025-02-19T23:59:59+00:00"
generated_at: "2026-05-26T11:35:42.644201+00:00"
event_type: "cyber"
sentiment: "negative"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# NioCorp reports cyber breach; $0.5M in vendor payments misdirected

## Summary
- Unauthorized third-party accessed info and email systems on February 14, 2025.
- Misdirected vendor payments of approximately $0.5M; company self-discovered the incident.
- Promptly notified financial institutions and federal law enforcement; working to recover funds.
- Investigation ongoing; full scope, nature, and financial impact not yet determined.
- Company has not assessed whether incident is reasonably likely to materially affect results.

## SEC filing metadata
- accession: 0001539497-25-000735
- form_type: 8-K
- ticker: NB
- cik: 0001512228
- company_name: NIOCORP DEVELOPMENTS LTD
- filed_at: 2025-02-19T23:59:59+00:00
- event_type: cyber
- sentiment: negative
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1512228/000153949725000735/0001539497-25-000735-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1512228/000153949725000735/n2574_x251-8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001539497-25-000735
- JSON: https://secwatch.observer/filing/0001539497-25-000735.json
- Plain text: https://secwatch.observer/filing/0001539497-25-000735.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.