title: How does google recognize a "trusted device" with 2-step verification
body: <p>Assuming you have registered your device with <a href="https://support.google.com/accounts/answer/180744?hl=en&amp;ref_topic=1099588" rel="noreferrer">Google 2-step Verification</a>, what information does it use to verify that you are on that device when you come back to the website?  </p>
  
  <p>Does it store something on your computer (like a cookie), or does it use some other algorithm to determine where you are logging in from?</p>