Third-Party Risk Management: The Human Behaviours Behind Persistent Exposure

While third-party risk management frequently appears robust in governance forums, ongoing exposure suggests a more complex reality. This article explores human behaviours that influence the practical management of third-party cyber risk beyond the intentions of formal frameworks.

Third-party risk management (TPRM) is now a well-established discipline within cybersecurity and GRC. Most organisations can demonstrate defined processes, contractual controls, and assurance mechanisms to manage supplier risk, but many still struggle to effectively implement these measures, leaving vulnerabilities that third parties can exploit. Regulatory expectations have further reinforced the need for formal oversight of third parties, particularly in ensuring compliance with data protection laws and industry standards.

Yet incidents involving third parties remain a persistent threat. This suggests the challenge extends beyond framework maturity or technological capability. Human behaviour, organisational culture, and commercial pressures significantly influence the effectiveness of TPRM in practice, shaping the assessment and resolution of risks.

This two-part series explores behavioural dynamics that frequently undermine third-party cyber risk management practices.

The pressure to appear ‘secure’

Third parties operate in competitive environments where demonstrating security maturity has become a commercial necessity. Suppliers therefore face implicit pressure to present themselves as operationally robust, even when controls may still be evolving or inconsistently applied.

As a result, self-assessment questionnaires and maturity declarations can sometimes reflect aspirational practices rather than actual control effectiveness. Cultural factors reinforce this dynamic when internal teams feel compelled to align responses with contractual commitments or service-level agreements (SLAs).

The organisations issuing these questionnaires typically do so in a standardised format designed to streamline the process, recognising they may not have the capacity to review large volumes of supporting evidence or conduct detailed follow-ups with every supplier.

Consequently, customer organisations often rely heavily on declared security postures unless assurance processes include operational validation along with documentation.

Third-party providers may also feel pressure to avoid disclosing operational weaknesses, particularly when doing so could threaten contractual relationships. Without evidence-based validation or contractual audit rights, responses to control-maturity questionnaires may present an overly optimistic view of the security posture.

Ransomware and asymmetric exposure in third-party relationships

Ransomware has become the dominant third-party cyber risk scenario for many organisations. Suppliers often serve as a more accessible point of compromise, particularly when security investment and maturity differ significantly between the customer and the provider.

Compromising a single supplier can also provide attackers with access to multiple client environments, creating the potential for widespread disruptions or simultaneous extortion across several organisations.

The challenge is not purely technical. Cultural and behavioural dynamics also play a part. Suppliers may hesitate to disclose emerging threats or early-stage incidents due to concerns about reputational harm, commercial repercussions, or contractual penalties. At the same time, customer organisations may implicitly expect suppliers to resolve issues independently until escalation becomes unavoidable.

This dynamic discourages early transparency, even though earlier collaboration could significantly reduce the impact of incidents.

In practice, ransomware exposure in third-party relationships can manifest in several ways: service outages, attackers pivoting through trusted connections, weak recovery capabilities, or delayed incident disclosure driven by fear of contractual consequences.

Encouraging more open information sharing requires organisations to move beyond purely compliance-driven oversight to shared risk ownership. Maturity-based assessments, collaborative exercises, shared threat intelligence, and environments that encourage early disclosure all contribute to stronger relationships and greater resilience.

Criticality, certification and misplaced assurance

Tiering suppliers by criticality is a common feature of mature TPRM programmes. Certifications and third-party attestations are frequently used as indicators of security maturity within these tiers.

However, certifications are ultimately interpreted and implemented by individuals. The presence of a recognised standard can therefore create a sense of assurance that does not always reflect the real risk associated with a specific service, environment, or delivery model. Over time, this can lead to reduced scrutiny of suppliers whose formal credentials appear strong, even when operational exposure remains significant.

A graduated approach to attestation enables suppliers to provide assurance proportional to their criticality. Subsequently, high-impact suppliers must demonstrate stronger control maturity and provide more substantial supporting evidence, while lower-criticality suppliers are subject to proportionately lighter assurance requirements. This tiered approach aligns oversight with risk while avoiding unnecessary burden on smaller vendors.

Relationships, legacy, and reduced scrutiny

Long-standing supplier relationships, particularly those supported by strong personal connections at senior levels, often benefit from a degree of trust not afforded to newer providers. Over time, this trust can reduce the frequency or depth of security scrutiny.

This rarely reflects deliberate negligence. Instead, it demonstrates how human relationships influence organisational behaviour. Although governance frameworks may mandate consistent oversight, in practice, scrutiny is seldom applied uniformly across all suppliers.

Legacy contracts can further increase exposure. Many were written before today’s cyber, operational, and regulatory expectations existed and therefore lack modern security clauses, clear incident-reporting requirements, defined recovery obligations, or meaningful audit rights. These gaps can leave organisations with limited leverage during an incident.

A clear example occurred in mid-2023 when a zero-day vulnerability in MOVEit Transfer, a widely used secure file-transfer product, was exploited by the Clop ransomware group. Attackers breached servers operated by hundreds of service providers, exposing sensitive data belonging to thousands of organisations that had no direct relationship with the compromised software.

“The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.” — Daniel J. Boorstin.

The continued presence of third-party cyber risk does not necessarily indicate that frameworks are ineffective. Instead, it highlights how behavioural dynamics and organisational incentives shape how those frameworks operate in practice.

Many of the most significant drivers of exposure sit outside formal processes and control structures. For boards and senior leaders, it is essential to recognise that human behaviour fundamentally shapes the effectiveness of third-party risk management.

Part 2 will explore how these behavioural dynamics influence real-world resilience when critical third parties experience cyber incidents or operational disruptions.

Meet Our Leadership Team.

At CRMG, our senior leadership team brings a rich history and deep expertise in cyber security. Spearheaded by consultants who are influential figures in the industry, our leaders are highly networked and well-established, with backgrounds in the ‘Big- Four’ firms.

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Simon Rycroft

CO-FOUNDER AND CEO

Former Head of Consulting at the ISF. On a journey to bring accessible risk management to growing enterprises.

Nick Frost

CO-FOUNDER AND CHIEF PRODUCT OFFICER

Former Group Head of Information Risk, PwC. Motivated by the need to implement cyber risk principles for the real world!

Dan Rycroft

DELIVERY DIRECTOR

Former Head of Delivery, Cyber Security at DXC. Delivers risk-based cyber security programmes with maximum efficiency.

Matt Brett

DELIVERY LEAD – CYBER RISK SOLUTIONS

Former Portfolio Director, Tech Security & Risk, GSK. Specialises in implementing efficient, pragmatic cyber risk solutions.

Martin Tully

DELIVERY LEAD – GOVERNANCE AND COMPLIANCE

Twenty years’ experience in delivering fit-for-purpose cyber governance initiatives.

Ryan Hides

DELIVERY LEAD – THIRD PARTY RISK MANAGEMENT

Project Management and Six Sigma expertise. Specialises in turning effective third party risk management into a scalable reality.

Sarrah Ahmed

HEAD OF MARKETING

Bringing over 17+ years of marketing expertise, passionate about crafting innovative marketing campaigns.

Tom Everard

Director Risk Services

Director of Risk Services with a passion for people-focused cyber security, crisis management, and tackling insider risk.

Rebecca Stanley

Finance Manager

Focussed on ensuring everything continues to run smoothly, Rebecca collaborates across teams and with clients to manage budgets, reporting, and all things finance.

Cyber Risk for Small Businesses in 2026: Why ‘If’ Is No Longer the Question

Cybersecurity is no longer a concern just for large corporations. In 2026, it has become a fundamental business risk for organisations of all sizes, including small healthcare practices and clinics.

The digital tools that have transformed operations, client communication and patient care have also created new vulnerabilities. What was once a “maybe” scenario has now become a near certainty: cyberattacks on small businesses are happening with alarming frequency.

Small and medium-sized enterprises (SMEs) are the backbone of the European economy. They account for approximately 99% of all businesses in the EU, employ close to 100 million people, and generate over half of the region’s economic output. Yet despite their critical role, businesses including small healthcare providers often lack the dedicated cybersecurity infrastructure found in larger organisations, leaving them more exposed to digital threats.

Why the threat is no longer theoretical

For many years, cyberattacks were seen as a problem primarily affecting large corporations with high public profiles. That perception has changed.

Today, research shows that more than 40% of cyberattacks in Europe target SMEs, and that up to 38% of small businesses have experienced a cyber scam or incident. What’s driving this shift is not a sudden surge of large-scale, custom attacks, but rather highly automated, scalable techniques that target common vulnerabilities found across many organisations.

What’s also striking is how professional cybercrime has become. Analysts estimate the global cybercrime economy to be worth multiple trillions of euros annually, on par with some legitimate industries. Many criminal groups now operate almost like corporate entities, complete with technical teams and even “support” channels to assist victims in paying ransoms – a clear indicator that this is a market-driven criminal enterprise with real financial incentives.

Healthcare and professional practices: high stakes, high risk

The risk is particularly acute for healthcare and professional practices that handle sensitive personal, medical data and financial data. In the EU, robust data protection frameworks, such as the GDPR, impose legal obligations on organisations to safeguard personal information. But beyond regulatory compliance, there’s something even more vulnerable at stake: trust.

Imagine this scenario: a ransomware attack encrypts patient records or blocks access to core systems, forcing the rescheduling of appointments and halting communications. The immediate operational disruption is costly, as backups may also be encrypted, and the data is permanently lost. But the reputational damage can take years to repair as customers transfer to another practice to seek treatment.

European research further suggests that many SMEs believe a serious cyber incident could threaten their business survival if systems were down for more than a few days, and that organisations that rely on continuous access to client records and scheduling systems face outsized consequences from even short disruptions.

How cyberattacks actually start

Despite the high-level discussions about cybercrime syndicates and ransomware, most attacks affecting small organisations begin with surprisingly simple entry points:

Such entry points could be as simple as a convincing phishing email or a stolen password that slips past busy reception staff. Once an attacker gets that first foothold, they move fast, resetting access, hijacking email flows, and deploying ransomware or stealing data.

Turning the tide: what small businesses can do today

The good news is that many of the most disruptive cyber incidents are preventable or at least can be mitigated significantly. Small organisations don’t need enterprise-level cybersecurity teams to make meaningful progress; they need well-chosen controls, consistency, and awareness. Here are some of the most effective controls that practices can adopt:

  • Backing up your data – keep regular, tested backups (possibly an offline copy) so you can restore quickly if ransomware hits or data gets deleted.
  • Protecting your organisation from ‘malware’. Practices MUST use up-to-date endpoint protection and prompt patching to block common malware and prevent its spread across devices. DO NOT USE FREE anti-malware software
  • Keeping smartphones (and tablets) safe by enforcing screen locks, auto-updates, and remote wipe, so lost devices or risky apps don’t become an easy entry point into company accounts
  • Ensuring all staff have their own individual passwords to protect your data and track access using strong, unique passwords. For sensitive systems (e.g. payment systems) ensure multi-factor authentication is enabled so stolen credentials (passwords) alone aren’t enough
  • Avoid phishing attacks – train staff to spot suspicious messages and verify payment or login requests out-of-band, because phishing is still the simplest way attackers get in.

Reframing cybersecurity as business resilience

In 2026, cybersecurity moved from a technical silo to a business imperative. Preparedness now goes hand in hand with competitiveness and trustworthiness. Organisations that treat cybersecurity as a core element of their risk management strategy are better positioned to protect their clients, maintain continuity, and strengthen their reputation.

This is especially true in sectors like healthcare and professional services, where data is both sensitive and indispensable. The goal is not perfection. No system can be completely invulnerable, but it is about moving from reactive firefighting to proactive resilience.

At this stage of digital evolution, cyber risk is a normal part of doing business. The organisations that understand this will be the ones best equipped to thrive not despite cyber threats, but alongside them.

Get in touch to find out how you can protect your business in 2026.