The four undergrads of the Diaspora team were given "a global commission to rebottle the genie of personal privacy" after scoring $200,000 in a Kickstarter campaign and support and mentorship from Silicon Valley's brightest.
Participants in an ethical hacking contest at a Swiss security conference in Geneva in March. So-called bug bounty programs are becoming very popular in Silicon Valley's high-tech sector.
Salvatore Di Nolfi/EPA/Landov
A customer sets up her new iPhone 6 at an Apple store in Beijing on Friday. A group says the Chinese government backed an attack against users of Apple's iCloud service, but the government denies the claim.
Feng Li/Getty Images