We have already seen both proof-of-concept and in-the-wild demonstrations of attacks targeting system firmware such as SMM rootkits, device firmware replacement, and even usurping firmware-based features for malware. As part of our ongoing security research efforts, we recently reviewed various Supermicro systems and discovered serious firmware vulnerabilities. Such issues affect many models and have persisted for many years, which could be problematic since these systems are commonly used as data center servers. As other researchers have shown, Supermicro is not alone. Security vulnerabilities in firmware continue to be discovered regularly. Unfortunately, malicious activity at the firmware and hardware level is invisible to most detection and response mechanisms in use today, leaving many critical systems exposed to attacks that target this area.