Facebook in 2013 acquired a tool called Onavo. The acquisition generated little buzz, as it wasn’t a flashy consumer product. It was a wonky-sounding thing called a virtual private network, or VPN, which was made by Israeli engineers to allow people to be able to browse the Internet free from government spying on their activity, and from having to go through firewalls. For Facebook, the acquisition was crucial. While people were escaping the watchful eye of their governments, they were unwittingly giving Facebook competitive intelligence. Once Facebook purchased the VPN company, they could
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