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Secure Boot

Secure Boot is a UEFI feature that ensures only trusted software runs during system startup.

What is Secure Boot?

Secure Boot is a UEFI security standard that ensures a device boots using only software trusted by the manufacturer, protecting against boot-level malware and rootkits.

Secure Boot process

Firmware verifies bootloader signature, Bootloader verifies kernel, Chain of trust established.

Common misconceptions

  • "Secure Boot prevents Linux" — Most distros support it
  • "Secure Boot is DRM" — Security feature
  • "Disable for dual boot" — Usually not necessary