Re: Invalidating Caches, Cost of That
For the time being, just use a dedicated computer for any high security application. Cloud computing is a security risk, anyway. Can you trust a random $employee in $CloudCorporation ?
For example, run a dedicated Email server just for your CEO. Lock this server in a specially hardened, access-controlled space. Never let a single Snowden do the maintenance on the server etc etc.
The latest RPI is both cost efficient and small. You can mount it in a safe, which is bolted into the concrete of your data center,...