CCT 354: Data Security Controls and Compliance Requirements for the CISSP (Domain 2.3) - REPLAY

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Your firewall can be patched tomorrow, but what about the place your system hides its real secrets today? We start with a timely warning about a serious Fortinet FortiGate vulnerability and why perimeter devices are still a make-or-break control, then we pivot into the deeper layer most people ignore until it’s too late: memory.

We walk through CISSP Domain 3.4 by focusing on what memory protection is actually trying to achieve: confidentiality, integrity, and process isolation. From there, we unpack how modern operating systems enforce separation with paging, segmentation, and strict read, write, execute controls. You’ll hear why Meltdown and Spectre were such a big deal, how speculative execution can leak passwords and encryption keys from privileged memory, and why patching decisions are never just “apply everything” but a risk-based vulnerability management call that depends on visibility into what you run.

Next, we connect memory protection to virtualization security. We break down hypervisors, guest and host isolation, Type 1 versus Type 2 designs, and the threats that keep security teams up at night: VM escape, side-channel leakage through shared CPU resources, and the operational hazards of memory overcommitment. Then we bring in hardware roots of trust through TPMs: secure boot, measured boot, key storage for full disk encryption, TPM 2.0 types, and how HSM-style key management shows up in cloud environments. We close with practical best practices, from firmware and microcode updates to choosing encryption controls that fit your actual risk.

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