Summary:
OT cyber defense is often inadequate, and basic security measures are neglected. Hackers exploit weak authentication. Aging OT systems complicate security updates and challenge integration with IT. Implementing role-based access, multi-factor authentication, and zero-trust principles is critical yet complex. The shift to cloud services raises concerns about user access management. Compliance with standards like ISA/IEC 62443 is essential, but challenges remain, including legacy system vulnerabilities and the need for robust security practices across IT and OT environments.