[2] The first version of AppShield was developed by a team led by Gili Raanan, and was running on a dedicated Linux server.
[3] Version 3 was released in April 2002, adding collaborative testing capabilities, where different tasks can be assigned to different testers; and a number of user interface enhancements in both the scanning and reporting sections of the program.
[5] In July 2004, Sanctum was acquired by Massachusetts based company Watchfire, which developed a web applications management platform named WebXM.
[7] In 2009 IBM acquired Ounce Labs and added yet another tool to AppScan to find and correct vulnerabilities in software source code.
[8] In June 2019, HCL acquired select IBM collaboration, commerce, digital experience, AppScan and BigFix solutions.