🛡️ CISSP Domain 3 Published

CISSP - System Security Capabilities: Protection Rings, Memory, Firmware

Uploaded: April 20, 2026

CISSP - System Security Capabilities: Protection Rings, Memory, FirmwareWatch on YouTube

CISSP Domain 3 system security capabilities: CPU protection rings (Ring 0 kernel vs Ring 3 user), the memory management unit and process isolation, memory defenses (DEP/NX bit, ASLR, stack canaries), firmware security (BIOS vs UEFI, Secure Boot, TPM hardware root of trust), firmware attacks (BootHole 2020, ThinkPwn 2016, SMM privilege escalation), and hardware CPU vulnerabilities Meltdown and Spectre. Part of the complete CISSP study playlist.

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CISSP Domain 3 system security capabilities: CPU protection rings (Ring 0 kernel vs Ring 3 user), the memory management unit and process isolation, memory defenses (DEP/NX bit, ASLR, stack canaries), firmware security (BIOS vs UEFI,...

Key Topics

  • System Security Capabilities -- The Hardware Foundation
  • CPU Protection Rings -- Hardware-Enforced Privilege Levels
  • The Memory Management Unit -- Process Isolation in Silicon
  • Memory Defenses -- DEP, NX, ASLR, and Stack Canaries
  • BIOS, UEFI, and Secure Boot -- The Firmware Chain of Trust
  • Firmware Attacks -- BootHole and ThinkPwn
  • Meltdown and Spectre -- When CPU Design Is the Attack Surface
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