Thats what we really concern about. This is how it works:

• firstly, we reduce number of concurrent users in one hosts up to 5 people (in Amazon this is approx 300-400 users at one server)
• secondly, we use Full Disk Encryption (FDE) to encrypt full disk of your remote workspace. Even if it will be stolen, it will stay unbreakable
• thirdly, we replicate virtual disk of you workspace online to 3 different machines around you. if one goes down - another one wake up
• and last -  we hate containers (LXC/LXD/Docker) as they can be easily cracked from the nearby container' user. Just separate VM

What i really like at this project that if i travel from NY to Beijing, my workspace goes with me. Let's imagine If data centre is decentralised than it means that hosts might be installed everywhere. Even around the corner. And when i want t use my workspace, system just has to replicate it to the nearest point to me. Our guys from technical team will use DNS requests to identify my position in the globe.

Also we use Security Perimetr to protect your workspace, i just curved up this picture from white paper. You can check how it works there