An incident resulting in significant harm to public security or public order or to other protected interests, and classified as such by the competent CSIRT.
A summary of the definition in Article 2(6) of the National Cybersecurity System Act; it is classified by CSIRT MON, CSIRT NASK or CSIRT GOV.1
Sources
- Sejm of the Republic of Poland, Act on the national cybersecurity system, consolidated text, Journal of Laws 2026, item 20, as amended (consolidated text prepared by the Chancellery of the Sejm) (in Polish)
Checked: 3 November 2026