Unsigned software is subject to tampering, such as the insertion of spyware or malware, so end users are encouraged not to run unsigned code. Downloading or running unsigned applications will generate worrying “Unknown Publisher” security warnings.

Digitally signing code proves the signed software is legitimate, comes from a known software vendor and that the code has not been tampered with since being published. The security warnings that appear with unsigned code are replaced with notifications containing the software publisher’s information – adding an essential level of trust to the application.