The thing about data being kept secure is on UnboundID’s bulleted list, not mine.

As for the last four points, which are mine, the first two are part of client side hardware and software design and would therefore be of no cost whatsoever to server-side entities. Would it cost more to make a PC or cell phone (or operating system for the same) with those features? No, it would not. If anything, it would cost less. The third item admittedly shifts the end user from a passive to an active role in the business of data sharing. This, I suppose, could be seen as costly as it requests a major change in the usual way of doing business. I would expect the big players to be highly resistant to their “data partners” playing an active role in deciding what gets shared and how, or even of having an idea of what their data upstream looks like. The fourth item appears to be a glitch in my HTML. A, B, and C are part of the third item.