FEDERALUnknownEnergy & UtilitiesUtilitiesLow
NORTHERN STATES POWER CO /WI/
bd_f7261d05326ddc02 · schema v1 · pii pii-v1
Full breach record for NORTHERN STATES POWER CO /WI/ →NSP-Wisconsin, a wholly owned subsidiary of Xcel Energy, reports in its Item 1C cybersecurity disclosure that as of Feb. 25, 2026, no cybersecurity incident or attack affecting the company or its vendors has had a material impact on its business or results of operations, and there are no material cybersecurity incidents to report. The disclosure describes governance, NERC CIP compliance, NIST-aligned controls, and third-party risk management practices.
Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident
Source provenance
- Source URL
- https://www.sec.gov/Archives/edgar/data/72909/000007290926000003/nspw-20251231.htm
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
- Filed at
- Feb 25, 2026
- Raw hash
- 843b80ed7b03dad5146d4e68a5c1744ad83a24a12f3e4e95bdc3bd5e0901ac3f
Source filing
AI-assisted summary above. The structured extract on this page was generated from the document below. Inspect the source to verify or correct any field.
Reporting entity
- Name
- Northern States Power Company - Wisconsinnorm: northern states power company wisconsin
Victim entity
- Name
- NORTHERN STATES POWER CO /WI/norm: northern states power co wi
- SEC CIK
- 72909
- Industry
- Energy & Utilitiesllm
Incident
- Discovered
- —
- Materiality determined
- —
- Notification sent
- —
- Affected individuals
- Not disclosed
- Data types
- —
- Attack vector
- Unknown
Compliance
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.