Threat landscape for industrial automation systems in Q4 2025

The percentage of ICS computers on which malicious objects were blocked has been decreasing since the beginning of 2024. In Q4 2025, it was 19.7%. Over the past three years, the percentage has decreased by 1.36 times, and by 1.25 times since Q4 2023. Percentage of ICS computers on which malicious objects were blocked, Q1 2023–Q4 2025 Regionally, in Q4 2025, the percentage of ICS computers on which malicious objects were blocked ranged from 8.5% in Northern Europe to 27.3% in Africa. Regions ranked by percentage of ICS computers on which malicious objects were blocked Four regions saw an increase in the percentage of ICS computers on which malicious objects were blocked. The most notable increases occurred in Southern Europe and South Asia. In Q3 2025, East Asia experienced a sharp increase triggered by the local spread of malicious scripts, but the figure has since returned to normal. Ch

Source: https://securelist.com/industrial-threat-report-q4-2025/119392/