The main purpose of the digital certificate is to ensure that the application belongs to the entity to which the certificate was issued. The SHENZHEN YIBO DIGITAL SYSTEMS DEVELOPMENT CO. LTD. digital certificate does not guarantee that a signed application is safe to run, but rather informs the user that the software was digitally signed by SHENZHEN YIBO DIGITAL SYSTEMS DEVELOPMENT CO. LTD. and verified by a trusted Certificate Authority (CA).