Captcha Cracking Tactics: In Graphical Text Based Captcha

A Captcha has its vital role for Web based Applications enjoyed over Internet. It serves as the security gateway and provides permission when it testifies parameters according to its requirements. CAPTCHA points out the difference between Robots (Automated Bot) and Human Beings. So that our system will not suffer illegitimate use. Continuous trends have evolved with the advancement of technology to defy the CAPTCHA Security system. With recent advancements in cracking techniques, some Approaches grew old and some attain attention with development. Herein we present detailed investigation of Cracking Approaches for Graphical Text Based CAPTCHA Techniques.