LAKE MARY, Fla. – Fiserv Imagesoft has released a new version of its Guardian Series software suite that it says will better able financial institutions to guard against fraud and meet the technology demands of Check 21. Guardian Series version 8.3 is browser-based and includes enhancements that allow credit unions to perform multiple fraud and image-exchange assessment tasks with a single pass of a check image through the system, the company says. “Because of its cross-product integration, the Guardian Series provides financial institutions with the opportunity to leverage a single investment to meet both their check image exchange and check fraud detection needs. And because the system can perform multiple processes on a check image during a single pass through the system, users can optimize their processing efficiency,” said Ron Thompson, president of Lake Mary-based Fiserv Imagesoft.