Your driver needs to be properly certified and signed in order for the target operating system to see it as legitimate and trustworthy. Having a verified signature proves that your driver contains no malware and, therefore, is safe to use. For example, if you build a Windows driver, you might need to sign it with a Microsoft certificate or a certificate from a Microsoft partner. Otherwise, you won’t be able to install and launch your driver without extra manipulations on the operating system side. The Apriorit team can help you with obtaining a WHQL release signature for your custom driver as well as signing drivers for other operating systems.