Insider Threats Are Becoming a Reality

Written by Myles Dacres

Many organisations focus heavily on external threats such as phishing attacks, ransomware, or system vulnerabilities. While these risks are very real, they often overlook the fact that inappropriate internal access remains one of the most common causes of personal data breaches.

Insider Threats Are Becoming a Reality

Why Insider Threats Are Becoming a UK Healthcare Reality

A recent case reported by ITV has brought renewed attention to one of the most difficult data protection challenges facing healthcare providers today, unauthorised internal access to patient records.

According to reports, a medical practitioner is alleged to have accessed confidential patient data over a period of six years without the knowledge or consent of the data controller. The case is currently progressing through the courts, but it has already raised significant concerns around how healthcare organisations manage access to some of the most sensitive personal data in existence.

For many organisations across the UK, this will feel alarmingly familiar.

At Data Protection People, this is not an isolated incident. It reflects a growing pattern we are seeing within health and social care environments where personal data is not always being accessed maliciously from the outside, but instead by individuals who already have legitimate system permissions.

Healthcare Data Is a High Value Target

Health records fall within special category data under UK GDPR. This includes information relating to an individual’s physical or mental health, treatment history, medications, diagnoses, and other deeply personal details.

When accessed inappropriately, this information can be exploited for financial gain, identity theft, insurance fraud, or even social engineering attacks. In some cases, it can also lead to reputational damage, blackmail, or discrimination.

This is why healthcare breaches often carry some of the highest regulatory penalties and present the greatest risk to individuals.

Not All Breaches Are Caused by Hackers

In ITV’s coverage of the incident, our Data Protection Expert, Caine Glancy, was asked to comment on what may be driving the increase in these types of events.

He explained:

“People are seeing the significance and the impact data being breached out into the world seems to have had. I think it’s also because data protection is not something that’s being considered for all businesses as strictly as it should. At the moment, a lot of compliance with data protection seems to be more of a superficial statement for a lot of organisations.”

This highlights a key issue.

Many organisations focus heavily on external threats such as phishing attacks, ransomware, or system vulnerabilities. While these risks are very real, they often overlook the fact that inappropriate internal access remains one of the most common causes of personal data breaches.

Employees, contractors, students, and temporary staff may all have legitimate access to systems as part of their role. Without the right controls in place, this access can be misused, whether intentionally or otherwise.

Click here to view the full story via the ITV website.

Why Insider Access Is So Difficult to Control

Healthcare environments are built on trust and access to information is often essential for delivering timely patient care. However, this creates a tension between operational efficiency and data protection compliance.

We frequently support organisations who:

  • Have shared login credentials across departments
  • Provide blanket access to entire patient databases
  • Lack audit trails to monitor who accessed what and when
  • Do not regularly review user permissions
  • Rely on annual training alone to drive compliance

In fast paced clinical environments, access controls are sometimes viewed as a barrier to care delivery rather than a safeguard against harm.

However, without appropriate role based access controls, monitoring, and behavioural training, organisations may be unable to detect misuse until significant damage has already occurred.

What Organisations Should Be Doing Now

Cases such as this serve as a reminder that technical compliance alone is not enough.

Healthcare providers should ensure they have:

  • Clear access management processes aligned to job roles
  • Multi factor authentication for all systems containing patient data
  • Regular reviews of user permissions
  • System logging and monitoring to identify unusual access patterns
  • Targeted training programmes focused on real world risks
  • A documented incident response process for data breaches

Many of these measures are already required under the UK GDPR’s security principle, yet they are often implemented inconsistently in practice.

A Growing Trend Across the UK

With over 200 episodes of the Data Protection Made Easy podcast and a community of more than 1,700 data protection professionals, we regularly hear from organisations facing similar challenges.

The reality is that insider threats are rarely discussed publicly, but they are one of the most frequent issues raised during audits, SAR support work, and outsourced DPO engagements.

As this case demonstrates, organisations must move beyond treating data protection as a policy exercise and begin embedding it into day to day working practices.

Need Support Managing Access to Sensitive Data?

If your organisation handles special category data and you are unsure who currently has access to what, or whether your monitoring controls would detect inappropriate use, it may be time to review your approach.

Our team supports healthcare providers across the UK with access management reviews, breach response planning, and ongoing compliance support designed to reduce the likelihood of incidents such as this occurring in the first place.