Supply chain risk takes center stage in cyber sovereignty as hidden dependencies, long-tail vendors come into focus

Cyber risk management in critical infrastructure increasingly intertwines operational concerns with national security implications, particularly as legacy equipment supplied by geopolitical liabilities becomes harder to replace. Executives emphasize moving beyond static compliance towards continuous verification and real-time visibility into vendor practices and software components.

Key strategies include:

• Comprehensive inventory of existing systems to identify high-risk components.
• Layered defenses such as network segmentation, anomaly detection, and strict monitoring of remote access channels.
• Leveraging SBOMs (Software Bills of Materials) and HBOMs (Hardware Bills of Materials) for transparency into component provenance.
• Independent validation of vendor security claims through third-party assessments.

Vendor concentration escalates to a national security issue when:

• A single foreign supplier controls significant portions of critical control systems across multiple facilities in essential sectors.
• Compromise or coordinated action by the vendor's home government can cause widespread disruption.

Addressing legacy equipment involves:

• Gaining visibility and segmenting critical assets.
• Applying protections that harden software against exploitation without source code changes.
• Preparing for worst-case scenarios where vendors no longer support outdated systems.

Continuous monitoring and proactive risk management are essential to mitigate both operational and national security risks in today’s complex supply chains.

Read the full article at Industrial Cyber

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