[Data] The weaknesses of external connections demonstrated by four accidents.

Common intrusion routes associated with successive business suspensions! The next step is to take inventory of OT external connections.

This document is a white paper on the intrusion routes and external connections of factory OT, as demonstrated by four domestic ransomware incidents. It organizes points that organizations looking to strengthen their defenses can learn from the published facts and recurrence prevention measures. Where are the weaknesses in the management structure of your OT? The control of external access for OT is divided into four perspectives: entry, visibility and traceability, identity verification and authority, and scope and time, illustrated in accordance with Secomea's architecture. [Contents (partial)] ■ Introduction: Common intrusion routes leading to business shutdowns ■ Chapter 1: Incidents originating from permanently connected devices ■ Chapter 2: Incidents where logs were lost and routes could not be determined ■ Chapter 3: Incidents where exceptions for accounts became a breakthrough ■ Chapter 4: Incidents where constant connections allowed lateral movement *For more details, please download the PDF or feel free to contact us.

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