Hospital cyberattacks expose the identity gap in healthcare security

At a glance

What this is: This is an analysis of why hospital cyberattacks are escalating and how identity, access, and resilience gaps make healthcare systems vulnerable.

Why it matters: It matters because healthcare teams must govern human, machine, and privileged access together if they want to protect clinical continuity, patient data, and regulatory compliance.

By the numbers:

• In Germany, the number of successful cyberattacks rose 74% from 2020 to 2024.
• In a 2017 survey, two thirds of German hospitals said they had already been the victim of a cyberattack.

👉 Read Imprivata's analysis of hospital cyberattacks, access risk, and healthcare resilience

Context

Hospital cyberattacks are no longer a narrow IT problem. In clinical environments, the real failure point is often identity governance, because legacy systems, connected medical devices, shared workstations, and privileged administrative access all create paths an attacker can use to move from one system to another.

The article frames healthcare as a sector where security, compliance, and patient safety are inseparable. That makes access control, authentication, and privilege management central to resilience, especially where older infrastructure and highly distributed device fleets cannot be protected by patching alone.

Key questions

Q: How should hospitals reduce cyber risk without disrupting patient care?

A: Hospitals should reduce risk by separating clinical workflows from administrative access, reducing shared credentials, and controlling access to connected devices and legacy systems. The objective is to keep care delivery usable while narrowing the paths an attacker can take from one compromised endpoint to another. That approach protects availability without relying on unsafe blanket access.

Q: Why do connected medical devices increase hospital cyber risk?

A: Connected medical devices increase risk because they expand the identity perimeter and often rely on persistent credentials or weak segmentation. If one device is compromised, the associated access can become a route into other systems. In practice, device identity and network reach must be governed together, not treated as separate technical issues.

Q: What breaks when privileged access is not tightly controlled in hospitals?

A: When privileged access is not tightly controlled, attackers can alter systems, disable safeguards, or reach sensitive data faster than defenders can respond. In hospitals, that can interrupt care, complicate incident response, and increase audit exposure. Privileged accounts should therefore be isolated, monitored, and limited to the exact work they need to perform.

Q: Who is accountable for cybersecurity failures in hospital environments?

A: Hospital leadership is accountable when cybersecurity controls fail, especially under regulations such as NIS2 and sector-specific security rules. Responsibility is no longer limited to the IT function because access control, recovery planning, and operational continuity affect patient safety. Boards and executives need evidence that identity controls are managed as part of enterprise risk.

Technical breakdown

Why legacy hospital systems are easy to abuse

Hospitals often run older operating systems, medical devices, and server software that cannot be updated quickly or uniformly. That creates a persistent attack surface because known vulnerabilities remain available long after they are public. In a clinical setting, attackers do not need perfect coverage; they need one exposed system with enough reach into the network. Shared operational dependencies make segmentation harder, and downtime constraints often delay remediation. The result is a long-lived exposure window that outlasts normal IT refresh cycles.

Practical implication: map legacy assets to their identity dependencies and isolate them before remediation is complete.

How connected medical devices expand the identity perimeter

The internet of medical things turns hospital infrastructure into a dense web of endpoints, each with its own access path, credentials, and trust assumptions. If a device or mobile endpoint is compromised and holds valid access, that access can become a bridge into broader clinical or administrative systems. The problem is not only device security but the identity attached to the device. When credentials are shared, long-lived, or poorly scoped, compromise of one endpoint can become a network-wide issue.

Practical implication: treat device identities as governed assets and remove broad, reusable access from clinical endpoints.

Why privileged access needs separate control in hospitals

Administrative and maintenance access carries disproportionate risk because it can change configurations, access patient data, or disable controls. Hospitals need more than authentication at the front door. They need session visibility, access logging, and strong separation between normal clinical use and elevated administrative actions. This is where privileged access management becomes essential, especially in environments with multiple vendors, outsourced support, and urgent operational pressures. Without it, the most powerful accounts become the easiest route to disruption.

Practical implication: enforce separate privileged pathways with logging and real-time oversight for all administrative access.

NHI Mgmt Group analysis

Hospital cyberattacks expose an identity governance problem, not just a resilience problem. The article shows that legacy systems, connected devices, and privileged access combine into a governance gap that attackers can exploit repeatedly. In healthcare, uptime pressure often keeps insecure access paths alive longer than they should remain. The practical conclusion is that clinical continuity depends on identity discipline as much as on backup and recovery planning.

Shared and persistent access is the real multiplier in healthcare environments. When devices, workstations, and administrative tools all authenticate into the same operational fabric, one compromised credential can move far beyond its intended scope. That is why healthcare is not only a data-protection issue but also a privilege-boundary issue. The practitioner takeaway is that access scope must match clinical function, not organizational convenience.

NIS2 and sector-specific rules are turning access control into board-level accountability. The article is clear that hospital leadership can no longer treat security as an isolated IT function. That shifts identity governance into operational risk management, where auditability, access control, and recovery planning are all inspected together. The practical conclusion is that hospital leaders need evidence that access decisions are controlled, reviewable, and defensible.

Privileged Access Management matters in hospitals because administrative access is a clinical risk vector. The article highlights that administrative access, when unmanaged, can become the quickest route from intrusion to outage. This aligns with OWASP-NHI and NIST CSF thinking on controlling high-risk identities and protecting availability. The practitioner conclusion is that privileged sessions in healthcare should be tightly separated, logged, and monitored.

74% growth in successful attacks is a signal that healthcare threat pressure is outpacing governance maturity. That kind of growth does not come from a single weakness. It reflects a programme-level failure to control the combined exposure of devices, identities, and legacy infrastructure. The practical conclusion is that hospitals must treat identity governance as a core resilience capability, not an adjacent control.

From our research:

• 90% of IT leaders say properly managing NHIs is essential for a successful zero-trust implementation, according to Ultimate Guide to NHIs.
• Only 5.7% of organisations have full visibility into their service accounts, which explains why identity blind spots remain a persistent control weakness in complex environments.
• For a broader breakdown of exposure patterns, see The 52 NHI breaches Report, which shows how weak identity governance repeatedly becomes an incident multiplier.

What this signals

Hospital security programmes should treat access governance as part of clinical resilience. The article makes clear that downtime, patient safety, and identity control are linked. When administrative access, device access, and legacy systems are governed together, hospitals reduce the chance that a single intrusion becomes a system-wide operational failure.

Identity blind spots are especially dangerous in highly connected care environments. Only 5.7% of organisations have full visibility into their service accounts, according to the Ultimate Guide to NHIs. In healthcare, that lack of visibility matters because device identities and privileged access often sit outside the normal user lifecycle.

Cross-domain governance is now the right model for healthcare security. Hospitals need a programme that connects human access, machine access, and privileged access into one audit-ready control plane. The organisations that still treat those as separate projects will struggle to defend both availability and compliance.

For practitioners

• Separate clinical and privileged access paths Create distinct access routes for routine clinical use and administrative tasks, and require logging for every elevated session. That reduces the chance that a compromised endpoint can directly reach critical controls.
• Inventory device and service identities across the hospital network Map which medical devices, workstations, and backend services hold credentials, what systems they can reach, and which vendors or teams manage them. The goal is to eliminate invisible trust paths across the clinical estate.
• Use privileged access controls for administrative accounts Apply session recording, just-enough access, and real-time monitoring to accounts that can alter infrastructure, patient systems, or security settings. In hospitals, those accounts need stronger oversight than standard user access.
• Tie recovery plans to identity and access dependencies Test whether clinical operations can continue if authentication, endpoint access, or administrative tooling is degraded. Recovery planning should cover how staff regain safe access without reusing broad emergency credentials.

Key takeaways

• Hospital attacks are increasingly a governance problem because legacy systems, connected devices, and privileged accounts create repeatable identity paths for attackers.
• The scale is material: Germany saw a 74% rise in successful attacks from 2020 to 2024, and two thirds of hospitals reported prior compromise in a 2017 survey.
• Hospitals reduce blast radius when they separate clinical and privileged access, govern device identities, and tie recovery planning to access dependencies.

Key terms

• Privileged Access Management: Privileged Access Management is the control layer that restricts, records, and supervises high-risk administrative access. In healthcare, it is especially important because privileged sessions can change availability, alter device settings, or expose patient data, so the access path itself becomes a clinical and compliance risk.
• Identity Perimeter: The identity perimeter is the full set of users, devices, service accounts, and credentials that can authenticate into an environment. In hospitals, that perimeter extends beyond staff logins to include medical devices and back-end services, which means governance must cover every access-bearing entity, not just human accounts.
• Clinical Continuity: Clinical continuity is the ability to keep patient care running when systems are degraded or unavailable. It depends on more than backups because authentication, privileged access, and device connectivity all affect whether staff can safely deliver treatment during an incident or recovery period.

Deepen your knowledge

NHI governance, agentic AI identity, and machine identity security are core topics in our NHI Foundation Level course, the industry's only accredited NHI security programme. If you are responsible for identity security strategy or NHI governance in your organisation, it is worth exploring.

This post draws on content published by Imprivata: hospital cyberattacks, healthcare identity risk, and regulatory implications. Read the original.