Reuters[0] was the only english source that I could find, sorry
So far, the press release doesn't say about locked files, stolen data, or data loss. I think it's not that bad, and it's strange to capture all that data without someone noticing. The alleged group didn't put a wallet address or showed interesting of selling all the stuff, really strange, and people are saying this "hack" was not a real threat.
[0]: https://www.reuters.com/technology/brazils-health-ministry-w...
