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OTI Impact Score Introduced for Measuring OT Cyber Incident Severity

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A new Operational Technology Incident (OTI) Impact Score model, inspired by the Richter Scale, has been developed to measure the severity, reach, and duration of OT cyber incidents. The model aims to provide a standardized way to assess the actual effects of OT cyber incidents, which often get over- or under-hyped. The OTI Impact Score was unveiled at the S4x26 Conference in Miami and is designed to help business executives, governments, cyber insurers, the media, and the public understand the impact of OT attacks more accurately. The OTI Impact Score is calculated based on three criteria: severity (from minor disruption to catastrophic destruction), reach (geographic spread), and duration (length of time) of the incident. Volunteers from the ICS/OT industry will score OT cyber events via an online portal, with the goal of issuing the assessment within 12 hours. The model has been applied to past incidents, such as the 2021 Colonial Pipeline cyberattack, which received a high impact score of 3.9, and the 2024 Muleshoe water utility attack, which received a score of 0.0.

Timeline

  1. 25.02.2026 14:00 1 articles · 2h ago

    OTI Impact Score Model Unveiled at S4x26 Conference

    The OTI Impact Score model, designed to measure the severity, reach, and duration of OT cyber incidents, was unveiled at the S4x26 Conference in Miami. The model aims to provide a standardized way to assess the impact of OT cyber incidents, which often get over- or under-hyped. The OTI Impact Score is calculated based on three criteria: severity, reach, and duration. Volunteers from the ICS/OT industry will score OT cyber events via an online portal, with the goal of issuing the assessment within 12 hours.

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