The risks of a breakdown (whether by simple failure or sophisticated hacker attack) are rising exponentially as more services are shifted to the web. Cloud computing, in which companies outsource hardware and some software needs to server farms all over the world, was a $60-billion industry in 2012, says the research company IDC. Microsoft’s cloud-computing customers reportedly include Aer Lingus, Dow Chemical and the University of Georgia. The New York Stock Exchange and NASDAQ use cloud computing. Even governments are getting on board: Canada has been examining ways to grow reliance on cloud computing, and in March, reports surfaced that Amazon is building a “private” cloud for the CIA.