They have made a couple of customizations to the regular Linux bootup that have severe security implications (i.e. download kernel modules from them among other things). 
Contrary to a &quot;classic&quot; dedicated server, with this configuration you are very much trusting them unless you make changes.<p>Read <a href="https:&#x2F;&#x2F;www.scaleway.com&#x2F;docs&#x2F;create-an-image-from-scratch&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.scaleway.com&#x2F;docs&#x2F;create-an-image-from-scratch&#x2F;</a> and ideally set up a server and look at what exactly is going on.<p>Unfortunately the script on that page has some errors (it references missing files and it&#x27;s missing some files that are required), they should really go over it and fix them.