4 ms·

I'm not sure where cursor movement was mentioned, other than the comments.

• ifdefdebug 12y ago
  I read it in the wired.com article about this also submitted to HN: "And [Vinay] Shet says even the tiny movements a user’s mouse makes as it hovers and approaches a checkbox can help reveal an automated bot."
  • tunap 12y ago
    Sounds like if I 'Tab' to the field & hit enter I must be a bot....
  • echeese 12y ago
    I guess it's a lot more complicated than it looks at a cursory glance.
    • deleted 12y ago
      [deleted]
    • nb4hnp 12y ago
      you seem to be looking for reddit. it can be found here -> www.reddit.com
    • enneff 12y ago
      It's almost as if Google is playing its cards close to its chest to avoid tipping off people intent on defeating it's captchas!