A few issues, 1. Not going to work for those with sight impairments. 2. Not going to work on mobile (in current form). 3. Its not any harder to break in an aut

A few issues, 1. Not going to work for those with sight impairments. 2. Not going to work on mobile (in current form). 3. Its not any harder to break in an automated way then most other CAPTCHA's I hate CAPTCHA's. With a passion. I even write automated CAPTCHA decoders for fun http://wausita.com/captcha/ http://wausita.com/captcha/ If there is one thing the world does not need its another CAPTCHA. If you have something to protect all the CAPTCHA's in the world are not going to stop those who want to exploit it. They can be automated or outsourced (easily and for peanuts). CAPTCHA's should only be considered suitable for keeping random spam bots off your site, and even then adding a honeypot field is a safer bet. If you are being targeted a CAPTCHA is next to useless.