It is dangerous out there New Years Meltdown and Spectre edition
The TLDR here, if you have any sensitive information with a cloud service provider, re think that. Often these things come to light after something bad has already happened. Hackers are working overtime to exploit vulnerabilities in these services because they are a data gold mine. If there is a common hardware vulnerability all services are a potential huge target. Just save your vacation pictures and legally purchased music up there. Everything else that you need a back up of, put it on an encrypted disk in a fire safe old school. Don't trust these services with sensitive personal data.