For years, operational technology (OT) security was viewed separately from IT security, relying on firewalls and low attack frequency. However, recent high-profile attacks have exposed OT vulnerabilities, leading to increased regulatory scrutiny, especially in critical sectors like electrical utilities. This shift coincides with the growing convergence of IT and OT environments, requiring integrated security strategies. CISOs must now adopt comprehensive approaches that unify IT and OT security to protect industrial control systems against evolving threats and ensure regulatory compliance.

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