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Protecting legacy OT systems against modern cyberthreats

June 17, 2026 · WeLiveSecurity · Severity: MEDIUM

Many manufacturing plants depend on OT systems that stay in service for many years. That long run can hide significant cybersecurity risks.

Key Takeaways

  • ESET warns that manufacturing plants depend on OT systems that stay in service for many years, hiding significant cybersecurity risks.
  • Long-lived legacy OT systems often lack modern security controls while facing modern cyberthreats, creating significant risk for manufacturers.
  • Manufacturers should segment and monitor legacy OT environments to mitigate risks from outdated control systems.
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