So, in SR5, everyone switched to this new "Gridded" Matrix. It's supposedly safer, easier to use, etc. However, as I was rereading Unwired, I got to thinking. We don't have UV nodes in SR5 (at least not yet, and they would probably be UV hosts in Data Trails), but they probably still exist. After all, Ares Firewatch wouldn't discontinue what is likely a multi-billion nuyen project just because everyone else switched to different Matrix Protocols.
This led me to thinking. Nodes, and UV Nodes, require a much different system setup, matrix connection, really everything to access, or more importantly, to hack. So, could a paranoid (or possibly just super secret security lab) use a Node to house and protect their data rather than a host? Your everyday hacker doesn't stand a chance of detecting, let alone hacking such a Node. All commlinks have been "upgraded" to not accept programs anymore. Even your genius hackers, and even Technomancers, would be highly unlikely to resort to old Matrix protocols and measures, since people would not suspect that the old Nodes would still be running. This would effectively create a Matrix host, actually a Node, where data can be securely kept, just because no one can find it. Not to mention it still can be bolstered as they were in SR4.
So, what does everyone think? I know it may be a little out there, but I think I'll likely incorporate it into my game if I ever run one. I'm curious as to what everyone else thinks about this.