This is why I keep all my files and emails on my local server. I keep it backed up and I control who has access to it and in a pinch I can remove it from any internet access. When you hand your files to a third party, you're at their mercy - if they change policies, screw up or go under, you're screwed and often have absolutely no recourse or way to recover your files.
I mean... being proactive should have been learned from Snowden's reveal about BIG brother moons ago one would think. Clearly, some folks are just a pillar of salt.