Legitimate use cases include:
A MediaTek (MTK) Secure Boot (SEC) bypass allows technicians and developers to disable the "Authentication" (Auth) and "Secure Boot" mechanisms on MTK-powered devices mtk sec bypass free
MediaTek processors include a built-in security architecture designed to protect user data. This includes: Legitimate use cases include: A MediaTek (MTK) Secure
Hold (or just Vol+) and connect to the PC. mtk sec bypass free