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NIST released new guidance to help organizations secure Building Automation & Control Systems (BACS) as cyber risk grows across operational technology environments in critical infrastructure, commercial properties, and federal buildings. The agency said BACS are increasingly connected to corporate networks and cloud services, expanding the attack surface for systems that manage HVAC, lighting, access control, fire alarms, and energy management. To support owners and operators with limited resources, NIST published a quick-start infographic with immediate defensive steps and pointed readers to broader OT security materials.
The release aligns with NIST’s wider sector-focused cybersecurity work, including the NCCoE’s Transit Cybersecurity Framework Community Profile, which maps cybersecurity practices for transit environments. NIST also said it is revising SP 800-82, the federal guide to operational technology security, and expects to publish a draft update for public comment later in 2026, signaling continued emphasis on practical protections for connected physical systems.
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NIST published a security notice and quick-start infographic with immediate cybersecurity steps for Building Automation & Control Systems owners and operators, developed with the BACS community. The guidance addresses growing OT risk as building systems become more connected to corporate networks and cloud environments.
The National Cybersecurity Center of Excellence published the Transit Cybersecurity Framework Community Profile project page as a sector-specific cybersecurity resource for transportation.
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The National Institute of Standards and Technology (**NIST**) published a draft *Transit Cybersecurity Framework Community Profile* intended to improve cybersecurity practices in transportation systems that require continuous operations and connectivity. The voluntary draft, developed by NIST’s National Cybersecurity Center of Excellence (**NCCoE**), is open for public comment through **February 23, 2026**, and positions transportation as a critical-infrastructure area needing more tailored cybersecurity guidance. Separately, **CISA** and the UK’s **NCSC** released joint guidance titled *Secure Connectivity Principles* for **Operational Technology (OT)** environments, aimed at helping asset owners balance business-driven connectivity (remote access, data integration, cloud connectivity) with security risk. The guidance outlines eight high-level principles (e.g., limiting exposure, centralizing and standardizing access, using secure protocols, hardening boundaries) intended to be broadly applicable across critical-infrastructure sectors. An additional Help Net Security interview with Fermilab’s CISO discusses general cybersecurity challenges in open scientific research environments, but it does not materially relate to the NIST transit framework draft or the CISA/NCSC OT connectivity guidance.
Jun 29, 2026
U.S. **operational technology (OT)** security specialists urged **NIST** to make its forthcoming update to *Special Publication 800-82* significantly more practical and granular, arguing that OT owners and operators need actionable guidance rather than high-level frameworks. The feedback was provided as NIST begins its **fourth revision** of SP 800-82 and solicits private-sector input, reflecting growing maturity and urgency in OT cybersecurity governance. Vendors and practitioners emphasized that OT environments require different approaches than conventional IT, particularly for **vulnerability management**, where standard IT practices may be ineffective or counterproductive in industrial settings. Commenters also called for more **sector-specific guidance** for emerging OT verticals such as **smart building management** and **distributed energy systems** (including **EV charging networks**), and broadly supported NIST’s proposal to move several SP 800-82 appendices online—covering OT security organizations, tools and threats, and catalogs of vulnerabilities and incidents—to keep reference material more current.
Jun 29, 2026
CISA, the UK **NCSC**, and multiple international partners released **Secure Connectivity Principles for Operational Technology (OT)** guidance aimed at reducing risk created by increased connectivity into industrial environments (e.g., industrial control systems, sensors, and other critical services). The guidance is positioned for operators of essential services facing business and regulatory pressure to enable remote monitoring and management, and it emphasizes that formerly *air-gapped* OT is now more exposed due to expanded remote access and IT/OT convergence. The guidance highlights that insecure or exposed OT connectivity is being targeted by a broad range of adversaries, including **ransomware groups**, **state-backed actors**, and **pro-Russia hacktivists** conducting opportunistic attacks against global critical infrastructure. Recommended defensive themes include **network segmentation**, **strong authentication**, continuous monitoring, and minimizing remote access paths to prevent disruptive incidents with potential real-world safety and service-delivery impacts; CISA also solicited stakeholder feedback via a product survey. Separate opinion pieces discussing AI in critical infrastructure and power redundancy risks in OT, and an industry roundup of Chinese cybersecurity companies, do not provide additional reporting on this specific guidance release.
Jun 29, 2026