Posts Tagged ‘OT cybersecurity’

Increased Number of Cyber Exposed OT/ICS Devices

Exposed OT/ICS Devices Recent data from several tracking sources indicates there has been an increase in the number of public IP addresses with accessible devices using standard OT/ICS protocols – BACnet, Modbus, Fox, Ethernet/IP, S7, and more. Data from three different sources – Censys, ShadowServer, and Shodan – give insight into the number of publicly…

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Modbus Security Issues and How to Mitigate Cyber Risks

Key Points Modbus Lacks Fundamental Security: Designed for isolated environments, Modbus protocols (especially Modbus TCP) lack encryption, authentication, access control, and integrity checks, making them highly vulnerable to cyberattacks. Common Vulnerabilities: Issues include default configurations, outdated firmware, absence of logging, susceptibility to replay, MitM, DoS, command injection, insider threats, and poor physical and network security.…

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