cisonews.net/ Incident & Disclosure Desk

2025 on cisonews.net

Everything we have on record from 2025.

15 incidents, newest first. Incidents sit under the month their first disclosure was filed. The log went live on September 27, 2026; entries about earlier disclosures were compiled from the filings after that.

All years 2025 incidents as a table

December 20251

IncidentFirst disclosed December 16, 2025Coupang reports access to up to 33 million customer accounts at its Korean subsidiaryCoupang8-K Item 1.05Consumer & retail

November 20251

IncidentFirst disclosed November 6, 2025The Oncology Institute reports patient data exposure through a software vendorThe Oncology Institute8-K Item 7.01; Item 1.05Health care

October 20253

August 20252

June 20252

May 20252

April 20252

March 20251

IncidentFirst disclosed March 6, 2025National Presto Industries reports a system outage that hit shipping and manufacturingNational Presto Industries8-K Item 1.05Industrials & manufacturing

February 20251

IncidentFirst disclosed February 18, 2025Lee Enterprises reports a network attack that encrypted applications and delayed print distributionLee Enterprises8-K Item 1.05Media