Added:

If no hack is published by 31 January 2024 this will resolve to NO.

Added:

Between 6 May 2023 and 31 December 2023 (not retrospective) ...

Hackers break into a Dutch government organization and steal, publish or destroy confidential information. The incident will at least be published on the nos.nl newssite.

DDos does not count.

Hacking devices of a government employee and stealing the data from there does not count.

Personal errors of a government employee, like losing a USB stick does not count.

The "back end" of the government organization must be compromised.

Added:

Administrator error that does not need hacking, like leaving an Amazon bucket open, does not count.

Administrator error, like not applying patches, and then getting hacked, does count.