How should healthcare organisations reduce risk from vendor remote access?

Why This Matters for Security Teams

Vendor remote access is not just a connectivity problem. In healthcare, it is a privileged identity problem with patient safety, regulated data, and operational uptime attached to every session. A vendor account that stays open after a service call ends can become a durable foothold for lateral movement, credential reuse, or unauthorized access to clinical systems. Current guidance from the OWASP Non-Human Identity Top 10 and NHIMG’s Ultimate Guide to NHIs points to the same issue: access must be governed as a lifecycle, not as a standing exception.

Healthcare environments are especially exposed because vendors often support EHR platforms, imaging devices, building systems, and outsourced service desks, each with different trust boundaries and different blast radii. The real risk is not simply that a vendor has access, but that access is broad, persistent, and hard to prove necessary after the fact. NIST’s Cybersecurity Framework 2.0 reinforces the need for governance, asset visibility, and controlled access paths instead of informal remote support habits. In practice, many security teams encounter vendor access abuse only after an incident review, rather than through intentional access design.

How It Works in Practice

The safest pattern is to treat each vendor as a distinct non-human identity with a narrowly defined purpose, expiry, and audit trail. That means no shared vendor logins, no blanket VPN reach, and no open-ended access tied only to a contract. Access should be scoped to the smallest workable application, device, or administrative function, then approved for a specific time window and revoked automatically when the task ends.

Operationally, this usually combines four controls:

• Task-based authorisation so the vendor can reach only the system required for the support ticket.
• Just-in-time access that activates only when approved and expires quickly after use.
• Strong identity proofing and session logging so the organisation knows who connected, from where, and to what.
• Regular entitlement review so dormant vendor accounts do not survive staff turnover or contract changes.

NHIMG research shows why this matters: the Key Challenges and Risks section notes that only 20% of organisations have formal offboarding and revocation processes for these identities, while 97% carry excessive privileges. That is exactly the condition that turns remote support into standing exposure. For healthcare teams, 52 NHI Breaches Analysis is a useful reminder that identity failures rarely stay isolated to one system. These controls tend to break down when legacy VPNs, vendor-managed appliances, and emergency support workflows are all exempted from the same governance model because each exception becomes a permanent access path.

Common Variations and Edge Cases

Tighter vendor access often increases operational friction, requiring organisations to balance rapid clinical support against stronger identity controls. That tradeoff is real, especially when a vendor must respond to outages at night or maintain equipment that cannot tolerate frequent authentication prompts.

Current guidance suggests a few practical exceptions can be managed safely, but there is no universal standard for this yet. Emergency break-glass access should be separate from normal vendor access, heavily logged, and reviewed after use. Legacy devices that cannot support modern identity controls may need compensating measures such as segmented networks, jump hosts, and short maintenance windows. Where vendors use automation, scripts, or API-driven support, those tools should be treated as separate identities with their own keys and rotation schedule, not as an extension of the human technician’s login. NHIMG’s Why NHI Security Matters Now section and NIST’s SP 800-53 Rev. 5 Security and Privacy Controls both support the same operational principle: access should be explicitly authorised, time-bounded, and revocable. This guidance breaks down when healthcare organisations rely on unmanaged contractor laptops or vendor-owned remote tools that bypass central logging, because the organisation loses both visibility and control.

Related resources from NHI Mgmt Group

• How can organisations reduce vendor access risk without stopping external work?
• How should organisations control access to frontier AI systems without creating surveillance risk?
• Why do VPN-style access models create risk in healthcare?
• How should organisations reduce privacy risk in identity verification workflows?