And, I would argue, 2016 will be remembered as the year when we fully grasped just how scary that can be — how easy it was for a presidential candidate to tweet out untruths and half-truths faster than anyone could correct them, how cheap it was for Russia to intervene on Trump’s behalf with hacks of Democratic operatives’ computers and how unnerving it was to hear Yahoo’s chief information security officer, Bob Lord, say that his company still had “not been able to identify” how one billion Yahoo accounts and their sensitive user information were hacked in 2013.