2026-03-26 · security
The Cybersecurity and Infrastructure Security Agency (CISA), in collaboration with the NSA and international partners, has issued a comprehensive advisory on securing Operational Technology (OT) and Industrial Control Systems (ICS). This guidance is critical for operators of hardware-secured environments.
The report emphasizes the need for physical isolation of critical OT networks from the public internet. It recommends the use of hardware security modules (HSMs) and multi-factor authentication (MFA) for all administrative access to control systems.
For institutions managing digital assets or critical data vaults, these CISA standards provide a blueprint for 'Zero Trust' hardware architecture. This includes regular firmware audits and the use of air-gapped signing devices to prevent remote exploitation.
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