This is probably illegal in Europe. They have 72h to notify their users after noticing a breach according to GDPR's article 33: https://gdpr-info.eu/art-33-gdpr/
They claim “scraping” in contexts where it benefits them to use that term (requirement to notify users) and “exploited vulnerability” when it benefits them in other contexts (answering to why private personal info was found online). Sometimes they even claim both in the same sentence:
> A Facebook spokesperson told Insider that the data had been scraped because of a vulnerability that the company patched in 2019
Edit: My bad, only notify the authorities.