The NotOneBit KillBot Professional application is intended to eliminate various types of web based robots from repeatedly filling out forms by requiring the user to enter some simple data (called a Turing or Captcha test). Many times you may have a form (feedback, poll, guestbook, etc.) on your web site and a malicious user targets a script to automatically fill out your form until it either cripples your server, skews statistics, or floods your inbox. By requiring the visitor to read the text in an image (over 900,000,000 possible text combinations alone) and enter that with the other data in your form, you can prevent automated scripts from repeatedly filling out your form. KillBot Professional builds upon the strengths of the NotOneBit KillBot script to create a truly dynamic form of authentication.