Cyber-physical resilience reshaping industrial cybersecurity beyond perimeter defense to protect core processes
Publish Date: 2026-05-03 01:15:00
Source Domain: industrialcyber.co
Cyber-physical resilience is forcing a shift away from perimeter-centric security toward protecting the integrity of industrial processes themselves. Perimeter defenses were built for a world where IT and OT environments operated separately. That separation has largely disappeared. Traditional air gap is fading, and while organizations with higher OT maturity report fewer incidents and faster recovery, most operators have yet to reach that level.
Detection, as a result, must move inside operations. KPMG highlights growing role of cyber-process hazard analysis to identify risks embedded in industrial workflows, not just networks. This reflects a broader transition toward monitoring process anomalies and physics-based deviations as indicators of compromise.
Once inside, they may move laterally, manipulate control systems, and take physical actions before they are detected. More than a decade after the launch of Stuxnet, the industrial environments that power critical infrastructures such as the electrical grids and water utilities remain less secure, and still offer avenues for malicious actors to exploit.
Industry data reveals the magnitude of change required by the new situation. About 21% of companies face OT cyber attacks each year, 40% of which lead to business disruptions. In addition, more effective detection strategies have been deployed, although process visibility still leaves much to be desired. Almost half of detected threats occur within the first 24 hours; however, the problem of poor process-level visibility and exposure due to remote access still persists. Meanwhile, 78% of all industrial control devices contain vulnerabilities that cannot be fixed.
Even architecture is being reconsidered. According to a Deloitte report, traditional OT infrastructures designed for efficiency rather than security purposes are extremely exposed to risks as OT and IT continue to converge. Ensuring protection within control systems, processes,…
