Privacy-Conscious?
"It is a particularly sharp loss for the firm which bills itself as a privacy-conscious file host."
A drum I've banged many times before; the best way to be "privacy-conscious" is to **not keep log files in the first place**. If you haven't got the data you can't be forced to turn it over.
Mega should be able to respond to this subpoena by handing over an *empty envelope* and saying "here - this is everything we have..."