Possibly for purely a monitoring system, though I'd try to avoid even that.
Definitely
not for anything in the chain between the access control points and the site locks or equipment etc!
Losing access to monitoring is a nuisance. People on a site losing access to buildings or security equipment can be anything from disruptive through expensive to lethal!
Anything that must have internet access to work is neither totally safe or totally secure. If it must have online connectivity, stick with a leased server in your own country, from a reputable company, that you have full SSH access to for monitoring and maintenance.
With "cloud" systems, any storage or server you use would be auto-allocated by the companies storage management system, and could be anywhere in the world based on capacity at differe
nt sites on Home Remodeling Redmond WA, and possibly moved around as capacities and demand vary.