Healthcare organizations face one of the most complex security challenges of any industry. Hospitals, health systems, telehealth providers, specialty practices, and life sciences organizations must protect highly sensitive patient data while ensuring uninterrupted care delivery and meeting strict regulatory requirements. At the same time, digital transformation across healthcare has dramatically expanded the attack surface, increasing both the likelihood and potential impact of cyber incidents.
The result is a troubling trend: healthcare data breaches are becoming both more frequent and more expensive, and many of them trace back to weaknesses in access control.
Healthcare Breaches Continue to Escalate
Healthcare remains one of the most targeted sectors for cyberattacks. Health records are highly valuable, and disruption in healthcare environments creates pressure to restore operations quickly.
The financial impact is substantial. IBM reports that healthcare has had the highest average breach cost of any industry for 14 consecutive years, with the average healthcare breach reaching $9.77 million in 2024, compared with a global cross-industry average of $4.88 million.
Large-scale incidents are also raising the stakes. The Change Healthcare cyberattack ultimately affected approximately 192.7 million individuals, making it the largest healthcare data breach reported in the United States.
But the true cost of healthcare breaches extends well beyond remediation. Cyber incidents can delay clinical procedures, disrupt diagnostic systems, interrupt claims and billing operations, and force hospitals to divert patients during emergencies. In healthcare, cybersecurity failures can directly affect patient safety. Understanding how these breaches occur is essential to reducing their impact.
Identity and Access Weaknesses Are a Primary Breach Vector
A growing body of breach analysis points to identity and access weaknesses as a major driver of healthcare incidents with attackers frequently using compromised credentials to gain initial access. Once inside, they often exploit overly broad permissions and flat network architectures to move laterally across systems.
Healthcare environments are especially vulnerable to this pattern. Clinical networks often connect EHR systems, imaging platforms, billing systems, research databases, and connected medical devices. If attackers compromise a single user account with excessive permissions, they may gain access to multiple critical systems.
Unauthorized access and disclosure also remain a meaningful contributor to healthcare breaches, reinforcing the need for stronger access governance and clearer visibility into who can access what, when, and under what conditions. In many cases, attackers do not need sophisticated exploits. They simply use legitimate credentials in environments where access is too broad and insufficiently monitored.
Third-Party Access Is Expanding Risk
Another major factor driving healthcare breach exposure is the growth of third-party connectivity. Hospitals and healthcare organizations depend on a wide range of external partners, including medical device manufacturers, IT service providers, billing platforms, imaging specialists, and telehealth vendors. These partners often require remote access to internal systems to maintain equipment, manage software, or support operational workflows.
That dependence comes with measurable risk. Nearly 48% of 2024 data breaches involved third-party connections, while industry analysis points to vendor access vulnerabilities, including stolen credentials and excessive access rights, as a major source of exposure.
Over time, vendor access can accumulate across multiple systems, creating hidden pathways into sensitive clinical environments. Attackers increasingly target these paths because they may provide easier entry than direct attacks against hospital infrastructure.
Legacy Access Models Cannot Keep Up
Despite these risks, many healthcare organizations still rely on access models built around VPNs, static firewall rules, and implicit network trust. Traditional VPN architectures grant users network-level access once authenticated. That model was built for a time when most users worked inside hospital networks and external connections were limited.
Modern healthcare environments look very different: Clinicians access systems remotely. Telehealth platforms connect providers and patients across geographic boundaries. Cloud-hosted applications extend healthcare infrastructure beyond traditional data centers. Thousands of connected IoMT devices interact with clinical systems.
Legacy access tools struggle to manage this complexity. Once a user authenticates, they may gain access to far more systems than necessary, creating opportunities for lateral movement if credentials are compromised. These architectures also make it difficult to enforce dynamic least-privilege access controls or demonstrate clear audit visibility, both of which are essential for compliance and breach investigations.
Why Breach Costs Keep Rising
Healthcare breaches are expensive not only because of the sensitivity of the data involved, but also because of how long incidents can persist and how deeply they can disrupt operations.
IBM reports that healthcare breaches take an average of 213 days to identify. The longer an attacker remains undetected, the greater the opportunity for lateral movement, data exposure, operational disruption, and recovery costs.
And those costs extend well beyond technical remediation. In healthcare, breach-related losses can include regulatory scrutiny, legal exposure, patient notification and support, claims and billing disruption, reputational damage, and reduced confidence among patients, partners, and providers.
Why Access Control Is Becoming a Strategic Priority
Healthcare leaders increasingly recognize that access security is not just a technical issue. It is a strategic risk management challenge.
Effective access control directly influences several critical priorities:
- Protecting patient data and maintaining HIPAA compliance
- Reducing ransomware exposure and lateral movement risk
- Supporting secure collaboration with clinicians and vendors
- Maintaining performance for EHR systems, imaging platforms, and telehealth services
- Improving audit visibility and regulatory defensibility
Modern access security must balance strong protection with operational reliability. Healthcare organizations cannot afford solutions that disrupt clinical workflows or introduce unnecessary performance bottlenecks. Security must protect systems while enabling clinicians and staff to deliver care efficiently.
Modernizing Healthcare Access with AppGate ZTNA
Healthcare organizations need an access model that protects critical systems without adding friction to clinical operations. AppGate ZTNA helps organizations move beyond broad network access and adopt a more precise, identity-centric approach to connectivity.
With AppGate, healthcare organizations can:
- Reduce breach exposure by granting access only to specific applications and systems rather than entire networks
- Limit lateral movement risk through dynamic, least-privilege access policies
- Improve audit visibility with centralized logging and policy-driven access controls
- Secure third-party connectivity without extending excessive permissions across clinical environments
- Maintain performance for critical healthcare systems including EHR platforms, imaging systems, and telehealth services
This approach allows healthcare organizations to strengthen security while preserving the operational continuity required for patient care.
Looking Ahead
As healthcare continues its digital transformation, the cost and complexity of cyber threats will only increase. Expanding digital ecosystems, growing vendor connectivity, and increasing regulatory scrutiny are raising the stakes for healthcare security leaders.
Modernizing access control is a foundational step in reducing breach exposure.
By moving beyond legacy access models and adopting identity-centric security architectures, healthcare organizations can better protect patient data, support regulatory compliance, and maintain the resilient infrastructure required to deliver care in an increasingly connected world.
Learn how AppGate ZTNA helps healthcare organizations protect patient data and maintain uninterrupted care delivery. Explore our Healthcare Solutions.