Jessie Frazelle • 5/8/2019

Why open source firmware is important for security

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The article analyzes system security through the lens of CPU privilege levels (Rings), highlighting that the most privileged layers (SMM/UEFI kernel and Management Engine) run proprietary, complex code. It argues this lack of transparency creates major security vulnerabilities and makes the case for open source firmware to provide visibility and control over these critical low-level components.

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#security #system management mode #Uefi
Why open source firmware is important for security

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