Yeah, this is ongoing.

We received communication that Canvas is down for "Under Maintenance" although it seems ShineyHunters have compromised Canvas again with that message you posted.

We do not see that message anymore, although all instrucuture.com URLs are down. The list of schools in the ShinyHunters publication can be found here: https://web.archive.org/web/20260507042014/http://91.215.85....