Ramnit malware infections spike in OT as evidence suggests ICS shift

Industrial giant Honeywell on Wednesday published its 2025 Cybersecurity Threat Report, which shows that ransomware and other malware attacks have surged in the industrial sector.

Honeywell’s report shows — based on OSINT and industry sources — that there has been a significant increase in ransomware attacks on industrial organizations. While these attacks did not necessarily impact operational technology (OT) systems, more than half of the 55 cybersecurity incidents reported to the SEC in 2024 did affect OT.

However, the most interesting findings in Honeywell’s latest report are based on data collected by the company’s own industrial cybersecurity products, which monitor networks for attacks, scan USB drives for malware, and provide threat and risk intelligence.

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