Managing External Connections to Your Operational Technology (OT) Environment
Summary: Dragos's 2021 Year In Review found that 70% of ICS environments have external connections from OEMs, IT networks, or the internet to the OT network, more than double the 2020 figure. The same report states that 77% of Dragos service engagements showed network segmentation issues, and that ICS/OT vulnerabilities doubled year over year to 1,665, with 35% capable of causing both loss of view and loss of control and about 90% having no mitigations in place.
Bottom line: Third-party and vendor connections are the most common path into OT environments, which means organizations inherit the security posture and risk of those partners - and with roughly 90% of the 1,665 identified vulnerabilities lacking mitigations, the Level 3/Level 4 boundary is the control point that matters most.
Read the original at Dragos Blog ↗
- Topics
- OT / ICS & Critical Infrastructure
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