We're working on something in this vein -- https://www.trycryptomove.com -- our technology does security via continuous concealment. Actively defends against insider attacks and catastrophic breaches, because the attacker can't even identify the data.

We've gotten two types of reactions: (1) we get it, layered security, defense in depth; (2) solution in search of a problem, we have good host security, we have a good firewall, legacy data-at-rest security is good enough. Thankfully far more of #1 than #2, but it's telling about an organization's approach to security.