Quebec's public sector privacy law names two parties an organization must notify after a breach: the Commission d'acces a l'information, and each person affected.
The timing requirement is "avec diligence". No number of days appears anywhere in the section. It also lets notice to individuals wait while a criminal investigation would be hindered.
Nothing in it attaches to telling the public. And in May 2025 the Commission stopped publishing its list of reported incidents.
So when the Commission de la construction du Quebec was attacked on 24 August 2026:
26 Aug, the CCQ says publicly it was attacked, and cannot yet say what was taken.
1 Sep, the ransomware group lists it on their leak site.
4 Sep, the CCQ names the group.
11 Sep, letters to affected people start going out.
14 Sep, reporters find passports and bank statements on the leak site.
Only the letters are in the statute.
https://cyberdoubts.com/teardowns/the-law-names-who-you-have-to-tell/