title: Should a MMORPG use encryption?
body: <p>First of all,
  <strong>do those successful commercial MMORPGs use encryption for game data transmission</strong>?</p>
  
  <p>I got an impression that many developers tend to <em>not</em> use encryption, because it can not prevent reverse engineering for cheating and making private server, but <strong>doesn't it effectively reduce the number of those</strong>?</p>
  
  <p>Encryption also impacts performance, even just a little.</p>
  
  <p>Good encryption does prevent network sniffering and man-in-the-middle, <strong>are these important for MMORPGs</strong>?</p>
  
  <p>How about <strong>protecting chat messages for privacy concerns</strong>?</p>
  
  <p>How do you think?</p>
  
  <p>PS: I'm talking about game data, not user/password, auth info need to be encrypted for sure.</p>