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What we know about the upcoming UK Cyber Security and Resilience (CSR) Bill

Jul 1, 2025

Earlier this year, the UK government introduced a Cyber Security and Resilience (CSR) Bill; a sweeping legislative effort to bolster national cyber defences in response to rising attacks on both public and private sectors. From the NHS pathology provider breach to ransomware crippling councils and more recently, retailers, the urgency is clear, organisations are vulnerable and regulators are stepping in.

Here’s what we know so far.

A new era for cyber accountability

The CSR Bill represents a fundamental shift from voluntary frameworks to enforceable obligations. It’s not just about compliance. It’s about embedding cyber resilience into every layer of critical service delivery and supply chain operations.

Whether you’re a managed service provider, a healthcare trust, a data centre, or a council, this legislation likely affects you.

What’s the Cyber Security and Resilience (CSR) Bill changing?

1. There's a broader scope of regulation

  • Managed IT and cloud service providers
  • Data-hosting and third-party suppliers
  • Public bodies like NHS trusts, schools, and local authorities

2. Tighter reporting requirements

  • Notify regulators and the NCSC within 24 hours of a significant cyber incident
  • Submit a detailed incident report within 72 hours
  • This covers confidentiality, integrity, and availability, not just outages

3. Greater regulator powers

  • Issue binding directives
  • Investigate proactively
  • Recover enforcement costs
  • Fines could reach ÂŁ100,000/day or 10% of global turnover, whichever is higher

4. Supply chains are under the microscope

  • Vendors designated as 'critical suppliers' will need to meet the same standards as regulated entities
  • Expect increased contract scrutiny, mandatory risk assessments, and formal cyber clauses

5. Statutory cyber standards

  • The NCSC’s Cyber Assessment Framework (CAF) will be the baseline standard for compliance
  • A Statutory Code of Practice will define expected behaviours and can be updated dynamically

Why this matters

The CSR Bill aligns the UK more closely with the EU’s NIS2 directive and reflects a global trend toward proactive cyber regulation. More importantly, it reflects the government’s belief that cyber security is now a matter of national resilience.

Next steps to consider

  1. Audit your digital supply chain: Understand which vendors and systems are business-critical
  2. Align with CAF standards: Patch any governance, detection, or response gaps
  3. Establish incident response protocols: Prepare for 24/72-hour reporting windows
  4. Review contracts: Embed cyber clauses and right-to-audit for all third parties
  5. Engage your board: Cyber risk is now a strategic issue with legal ramification

Want to read more? Here’s what cyber experts including Boxphish NED, Henry Doyle, have to say about the upcoming Cyber Security and Resilience (CSR) Bill.

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