TrustID Code Signing by IdenTrust (part of HID Global) is designed to secure software by providing a digital signature that verifies the identity of the software publisher and ensures that the code has not been altered or corrupted since it was signed. It is used to sign software applications, drivers, and other executable files, providing assurance to users that the software is legitimate and safe to install. TrustID Code Signing certificates are compatible with major platforms and applications, including Microsoft and Adobe products, ensuring broad usability and integration.