> So there's a nonzero chance at any given time that Linode's infrastructure has been compromised and they know it and have decided not to tell you about it.

This is entirely the roots of my distrust of them right now. Mistakes happen. Companies I trust demonstrate that they've learned from their mistakes. My tolerance for mistakes is pretty low when it comes to security related things, though. If something has gone wrong, let me know so I can take remedial steps. Their handling of both of those incidents suggested I can't trust them to tell me in sufficient time to protect myself.