Big corporations don&#x27;t generally share data with each other.  It&#x27;s more like the government, Google, Apple, Facebook, Microsoft, Amazon, Netflix, and numerous black hat spyware vendors are all monitoring you, and none of them trust anybody else.  People inside Google were fucking pissed when the NSA spying practices were revealed, people inside Apple regularly block Google&#x27;s apps for privacy concerns, people inside Google are regularly battling against spyware, people inside Facebook try to get you to share everything about you and your friends voluntarily while Google tries to provide alternatives that don&#x27;t involve giving Facebook the keys to your life (but do involve giving them to Google), people inside Microsoft copy &amp; scrape Google to try and grab whatever data Google happens to have, people inside the government are spying on all of the above.<p>Believing that everybody is out to get you is a sign of paranoia.  Believing that people and organization act in their own self-interest is generally a pretty accurate model.