Smart Cities no doubt face innumerable problems, but one of the fundamental ones is security. Not just the classic, “I have data I have to store, how do I make sure nobody can get at it?” security problem. A smart city might be reckoned to have an almost opposite problem. To make it work means drawing in increasingly ‘real-time’ data from all sorts of domains, locations and jurisdictions both within and outside the city. How can you ensure that nobody is tampering and altering it to serve their own advantage - misdirecting the traffic systems to steer customers to your shop, as a simple instance. The scope for naughtiness is endless.
http://www.telecomtv.com/articles/iot/smart-cities-keeping-the-data-real-by-borrowing-bitcoins-blockchain-13253/
