Clarke’s third law is that
any sufficiently advanced technology is indistinguishable from magic.
It does not apply to organisations who want to intercept communications: if it’s claimed that they can do something which requires magic, then in fact they can’t do that.
A recent article in The Economist talks about a plausible attack on the financial system: If financial systems were hacked: Joker in the pack. I liked this article, although I think it was a little naïve in two ways.
Or: why password strength checkers are useless.
Fog computing is like cloud computing except that no-one can see what you are doing.