You could use the same logic to say virtualization isn't safe, but it doesn't stop cloud providers from putting multiple people's VMs on the same instance. Rega

You could use the same logic to say virtualization isn't safe, but it doesn't stop cloud providers from putting multiple people's VMs on the same instance. Regardless of the technologies you use in your datacenter, there will be vulnerabilities that will need to be found, patched, and fixed.