Manufacturers sit at the intersection of two realities: relentless pressure to modernize and industrial adversaries that evolved well beyond smash‑and‑encrypt tactics. Late‑2025 threat telemetry found manufacturing as the primary OT/ICS target, with campaigns by state‑linked and ransomware groups designed to disrupt production or steal IP. Attackers frequently enter through IT systems—email, perimeter apps, vulnerable remote access—before pivoting to connected OT, where downtime hurts most. [trellix.com]
Recognizing this, CISA published Secure Connectivity Principles for OT (January 2026)—a timely framework translating segmentation and access control best practices into OT‑practical guidance. It comes alongside steady additions to the Known Exploited Vulnerabilities (KEV) catalog and frequent alerts, underscoring how quickly unpatched public‑facing systems are targeted. Industry surveys also show governance trending in the right direction: more organizations now assign OT security responsibility to an executive (often the CISO), and process maturity is up year‑over‑year—yet solution maturity (visibility, identity, and segmentation tech in OT) still lags. [cisa.gov] [waterisac.org]
What operations leaders should do in 2026
1) Shrink your attack surface.
Inventory public‑facing assets, eliminate unused services, and add virtual patching where firmware cycles are slow. KEV entries highlight the speed with which newly disclosed vulns are weaponized, especially in remote access gateways and web apps. [cisa.gov]
2) Segment with intent (zones & conduits).
Implement strong separation between enterprise IT and plant networks. Where remote access is required, enforce jump servers, MFA, and session recording. OT often falls to ransomware after lateral movement from IT; segmentation and identity guardrails choke those pathways. [cisa.gov]
3) Plan for joint IT/OT recovery.
BCDR must assume partial compromise. Keep immutable backups of PLC/HMI configs, historian data, and MES, plus golden images and firmware for key assets. Practice restore‑to‑operations drills that test not just file recovery but restart procedures and safety checks. [cisa.gov]
4) Elevate governance.
A recurring theme in 2025 research: organizations showing progress formalized OT risk under the C‑suite with clear accountability, metrics, and budget lines for segmentation and monitoring. Build a joint risk register and track mean time to isolate and mean time to recover for plant incidents. [waterisac.org]
How we help
We deliver OT‑aware cybersecurity and BCDR: asset discovery across IT/OT, CISA‑aligned segmentation, identity hardening for vendors, and production‑line restore rehearsals. The outcome: reduced lateral movement, faster recovery, and fewer surprises during audits or customer assessments. [cisa.gov]
Not only will a network administrator keep you safe, but you will not have to waste as much time going through unwanted emails. Protect yourself before the inevitable happens.
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