Episode 46: Hardware and Firmware Vulnerabilities (Domain 2)

Cybersecurity doesn’t stop at software—hardware and firmware vulnerabilities can offer attackers deep, long-term access to systems in ways that are difficult to detect and even harder to fix. In this episode, we explore how outdated firmware, hardcoded credentials, unsigned updates, and direct memory access (DMA) features can be exploited to bypass software-level protections. We also discuss the risks associated with end-of-life or legacy hardware that no longer receives updates, as well as the dangers posed by firmware rootkits and malicious drivers. Hardware-level compromises can persist even through OS reinstalls or disk replacements, making them highly valuable for persistent threats. Countermeasures include implementing firmware validation, using Trusted Platform Modules (TPMs), applying secure boot, and enforcing hardware lifecycle management. Organizations must treat hardware as a security domain in its own right—one that deserves the same rigor and oversight as software or networking.

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