IBM Security Verify Access (ISAM) is a service from IBM USA that improves user access security. The service enables secure and simple access to platforms such as Web, mobile, IoT, and cloud technologies through the use of risk-based access, single sign-on, integrated access management controls, identity federation, and mobile multi-factor authentication. IBM Security Verify Access is vulnerable to an input validation error that stems from a JWT token validation error, which could be exploited by an attacker to obtain sensitive information or potentially change certain information.