High Sec Labs

High Sec Labs (HSL) sells a category of hardware most software-focused security vendors never touch: secure KVM (keyboard, video, mouse) switches and peripheral-sharing devices that let one user console safely control multiple computers connected to networks of different security classification levels. The core problem HSL solves is data leakage and cross-domain contamination through shared peripherals — a keyboard, USB port, or shared audio channel can otherwise become a covert channel for exfiltrating data between an unclassified and a classified network, or between two customers’ isolated environments.

Founded in 2008 and rooted in Israeli defense-industry work protecting submarines and aircraft, HSL’s products are built and certified against NIAP Protection Profile standards (PSS/PSD) and EAL4+ Common Criteria requirements — independently audited hardware security certifications rather than self-attested claims, which matters enormously in this specific product category since a flawed isolation switch is a direct data-breach vector. Its customer base reportedly spans governments, defense organizations, banks, healthcare providers, and national infrastructure operators, i.e., the exact set of buyers with actual multi-level-security and classified/unclassified separation requirements.

HSL is relevant to security architects in defense, intelligence, financial services, and critical infrastructure who need physically certified isolation between networks of different sensitivity levels at the human-interface layer — a narrow but essential requirement that software-only data protection tools cannot address.