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The UK's new Critical Third Parties (CTP) regime marks a significant development in how regulators view technology risk within financial services. In this blog article, SES Secure's Head of Escrow & Continuity, Mark Ryan, evaluates the HM Treasury’s latest announcement, what it means for operational resilience and third-party software supplier risk, and why Software Escrow is becoming an increasingly important component of modern resilience strategies.
What Has HM Treasury Announced?
- The Bank of England (the Bank)
- The Prudential Regulation Authority (PRA)
- The Financial Conduct Authority (FCA)
HM Treasury has formally designated 4 technology giants as the UK's first Critical Third Parties (CTPs), highlighting the growing systemic dependence of financial institutions on a small number of critical technology and cloud service providers:
- Microsoft
- Amazon Web Services (AWS)
- Google Cloud
- Oracle
What the UK's New Critical Third Party Regime Actually Means for CTPs?
It’s been clearly recognised that significant disruption to the services of the 4 designated CTPs could have far-reaching consequences across the UK financial sector. As a result, these organisations are now subject to direct oversight by the Bank of England, Financial Conduct Authority (FCA) and Prudential Regulation Authority (PRA). They will now be expected to:
- Demonstrate robust operational resilience capabilities.
- Conduct regular resilience, stress and scenario testing.
- Report significant operational incidents to regulators.
- Show they can maintain critical services and support financial institutions throughout major disruption events
Crucially, it must be acknowledged that the new regime does not shift responsibility away from regulated firms. Banks, insurers and other financial institutions remain accountable for managing their own third-party risks, including due diligence, risk assessment, contingency planning and ongoing supplier oversight. The new regime simply acknowledges that certain technology providers have become so deeply embedded within the financial ecosystem that regulators must also oversee their resilience at a systemic level.
Why The New CTPs Regime Matters
For many years, operational resilience planning focused on physical disruptions, internal events, and questions like:
"Can our bank survive if one of our offices closes?"
While these risks remain relevant, the digital transformation of financial services has fundamentally changed the resilience landscape.
Today, a more pressing question is:
"What happens if a critical software supplier suffers a major outage, cyber incident, insolvency event, or ceases to support a business-critical application?"
This is the challenge regulators are increasingly focused on. The designation of Critical Third Parties reflects the reality that financial institutions now rely on a complex ecosystem of technology providers whose failure can have consequences far beyond a single organisation.
Modern financial services firms depend on third-party software and technology providers for essential functions including:
- Payment processing
- Customer onboarding
- AML and fraud prevention
- Treasury and trading platforms
- CRM systems
- Document and records management
- Identity verification
- Cloud infrastructure
- AI and data services
As financial institutions become increasingly digital, operational resilience is no longer just about recovering buildings, systems and people. It is equally about understanding, managing, and mitigating software supplier dependency risk.
Why Should Financial Institutions Be Concerned About Supplier Failure?
The Bank of England's new Critical Third Party (CTP) regime reflects a significant shift in regulatory thinking: technology providers are no longer viewed solely as supplier risks, instead they are recognised as part of the UK's financial infrastructure. Ultimately, regulators have designated providers such as Microsoft, AWS, Google Cloud and Oracle because a major disruption to their services could impact large parts of the financial sector simultaneously.
However, this raises an equally important question:
What about the thousands of smaller software vendors that financial institutions depend on every day?
Many firms rely on specialist software providers for critical functions such as lending, mortgage servicing, pensions administration, compliance, wealth management, payroll and trading.
While these suppliers may not be large enough to fall within the CTP regime, their failure could still disrupt essential business services across their entire customer base.
In other words, while regulators are rightly focused on systemic risk at the largest technology providers, organisations must also consider the operational resilience risks posed by smaller business-critical software suppliers. A supplier does not need to be designated a Critical Third Party to become a single point of failure.
This is why robust contingency planning is becoming increasingly important. As financial institutions assess their software dependencies, Software Escrow provides a practical resilience mechanism. Here at SES Secure, our Software Escrow/Source Code Escrow services help ensure continued access to critical applications, source code, and technical assets if a supplier can no longer support the software on which essential services depend.
Why Is Software Escrow Implemented As a Strategic Resilience Tool?
Software Escrow (also known as Source Code Escrow) has traditionally been viewed as a contractual or procurement safeguard. However, over the years it has developed into an important component of operational resilience and third-party risk management.
At its core, Software Escrow addresses a critical question:
What happens if a software supplier can no longer support a business-critical application?
This could be due to:
- Insolvency or business failure.
- Cyber-attacks or ransomware incidents.
- Loss of key personnel or technical expertise.
- Acquisition, merger or strategic withdrawal of a product.
- Regulatory restrictions or sanctions.
- Loss of hosting or infrastructure capability.
Without appropriate Software Escrow protection:
- Source code and critical technical assets may become inaccessible.
- Documentation and build instructions may be unavailable.
- Organisations may be unable to maintain, repair or recover the application.
- Critical business services could face prolonged disruption.
With a robust Software Escrow arrangement from a trusted provider, such as SES Secure in place:
- Source code, documentation and key materials are securely protected.
- Deposited assets are regularly verified and kept up to date.
- Pre-defined release conditions provide access when needed.
- Organisations have a viable continuity plan if supplier support is no longer available.
As regulators place greater emphasis on operational resilience and third-party dependency risk, Software Escrow is no longer just a legal safety net but also a strategic control that helps organisations maintain continuity when critical software suppliers fail.
Interestingly, a common misconception is that cloud backups alone provide operational resilience. In reality, backups are only one piece of the puzzle.
Backups protect data. However, they do not protect the wider assets and capabilities needed to operate and maintain a critical application, including:
- Application source code.
- Intellectual property and proprietary logic.
- Deployment and build processes.
- Technical and system documentation.
- Configuration files and dependencies.
- The ability to maintain, support and develop the software.
If a software vendor suffers a major disruption, becomes insolvent, or can no longer support its product, having a copy of yesterday's database may help preserve information, but it does not enable the organisation to continue running, maintaining or recovering the application itself.
Software Escrow fills this resilience gap by ensuring that the source code, documentation and other critical software assets needed to maintain business continuity remain accessible when supplier support is no longer available.
What Supplier Risk Questions are Regulators Now Asking?
Traditionally, third-party due diligence has focused on evaluating a supplier's current stability and controls, including:
- ISO certifications
- Financial performance and accounts
- Penetration testing and security assessments
- Cybersecurity controls
- Service level agreements (SLAs)
While these remain important, operational resilience is driving organisations and regulators to ask a different set of questions:
- What happens if the supplier fails or becomes unavailable?
- Can critical services continue operating without disruption?
- Is there a documented and tested exit strategy?
- How quickly can systems and services be recovered?
- Can the software be maintained independently if vendor support is lost?
These are no longer procurement or compliance questions; they are operational resilience questions.
At SES Secure, our client projects have clearly proven that a well-structured Software Escrow arrangement helps organisations by providing a credible continuity mechanism and demonstrating that plans are in place to maintain critical software and services if a supplier can no longer provide support.
What Does the Future of Third-Party Resilience Look Like?
The designation of Microsoft, AWS, Google Cloud and Oracle as the first Critical Third Parties is unlikely to be the end of the story. The new regime allows additional providers to be designated where their services become systemically important to the UK financial sector.
As a result, organisations are expected to place greater emphasis on resilience across their software supply chain, particularly for suppliers supporting important business services. This is likely to drive the implementation of:
- Validated Software Escrow arrangements.
- SaaS continuity and recovery solutions.
- Supplier exit and transition planning.
- Dependency mapping and concentration risk assessments.
- Operational resilience testing.
- Supplier recovery and failover exercises.
The conversation is therefore shifting from:
"Do we need Escrow because it's a contractual requirement?"
to:
"How do we continue operating if a critical software supplier can no longer support us?"
The Key Takeaway
The Bank of England's announcement is about more than the oversight of four major technology providers. It reflects a broader recognition that technology and software suppliers have become critical components of the financial services infrastructure.
As regulatory scrutiny of third-party technology risk increases, organisations will need to demonstrate not only that they understand their supplier dependencies, but also that they have credible plans in place to maintain critical services when a key supplier fails.
Contracts alone are no longer enough. Resilience requires preparedness. Software Escrow, verification and continuity planning provide organisations with a practical way to reduce software supplier risk, strengthen operational resilience and ensure continued access to the applications that underpin their most important business services.
If you're reviewing your operational resilience framework in light of the UK's new Critical Third Party regime, our experts can help you assess software supplier risk and implement effective continuity safeguards. Please get in touch to discuss your requirements.
Read our independent client feedback here.
To speak with Mark directly, please email him at markryan@ses-escrow.co.uk