Inkblots Add Security to Passwords (IMAGE) Carnegie Mellon University Caption The GOTCHA password system developed at Carnegie Mellon University incorporates randomly generated inkblots and descriptions users assign to those images, such as this one, "A robot preparing to jump." Credit Carnegie Mellon University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.