SaaS services have all the same risks that you have with storing data in house, but they also have the additional risk that they're not actually under your cont

SaaS services have all the same risks that you have with storing data in house, but they also have the additional risk that they're not actually under your control. I've encountered SaaS services in the past that have disappeared overnight without any warning, and without any way to get back the data they were storing (luckily it's never been important data).