Healthcare data guide

Post-Quantum Cryptography for Healthcare Data

Healthcare organisations and suppliers hold sensitive data with a long confidentiality lifetime. PQC planning should start with externally visible endpoints, then expand into clinical systems, suppliers, device identity, signing workflows and archived records.

Updated: 19 June 2026|12 min read

Patient portals and public endpoints

Scan public websites, appointment portals, patient login domains, API endpoints and remote access surfaces first.

Clinical and supplier systems

Map EPR, diagnostics, imaging, pharmacy, referral, telehealth, hosting and managed-service dependencies.

Long-lived records

Prioritise records, images, genetic data, mental health data, care notes and audit trails that remain sensitive for many years.

Identity and signing

Record SSO, certificates, device identity, document signing, code signing and API token signing workflows.

Why Healthcare Has a Long Data-Lifetime Problem

Health data, genetic data, clinical records, diagnostic images and mental health records can remain sensitive for decades. That makes healthcare a clear priority for harvest-now-decrypt-later risk assessment.

The UK Data Security and Protection Toolkit gives healthcare organisations a structure for security assurance, but PQC migration needs a more specific cryptographic inventory: where public-key algorithms are used, who owns them and which suppliers control the migration path.

Start with public endpoints because they can be measured quickly. Then move to EPR systems, supplier-hosted platforms, APIs, remote access, device identity and signing workflows.

Healthcare PQC Checklist

  1. 1. Run external scans for public healthcare websites, patient portals, supplier portals and API hostnames.
  2. 2. Add cryptographic dependencies to the data security and information governance evidence base.
  3. 3. Rank systems by sensitivity, data lifetime, clinical impact and supplier control.
  4. 4. Ask EPR, hosting, telehealth, identity and managed-service suppliers for PQC roadmaps.
  5. 5. Pilot hybrid transport security where hosting, CDN or gateway support is mature.
  6. 6. Treat signing workflows and medical-device dependencies as separate migration workstreams.

Primary References

Healthcare PQC FAQ

Why does healthcare data need PQC planning?

Healthcare data is often highly sensitive and long-lived. Records captured or exposed today may remain sensitive when future quantum computers can attack classical public-key cryptography.

Does the NHS DSPT certify post-quantum readiness?

The NHS Data Security and Protection Toolkit is a data security and information governance self-assessment. It does not by itself prove PQC migration, but it creates a useful evidence structure for security controls and supplier assurance.

Can a public website scan assess clinical systems?

No. A public scan checks externally visible TLS and security signals. Clinical systems, internal APIs, supplier services, devices and signing workflows need a broader cryptographic inventory.

Start With a Public Baseline

Scan a public healthcare endpoint, save the result in a free account and use it as the first evidence item in your healthcare cryptographic inventory.

Free readiness account

Keep This Guide Connected to a Real Website Scan

A PQC guide is more useful when it is attached to current evidence. Create a free account, add a public domain now or later, and keep a repeatable baseline for TLS, security headers and visible post-quantum readiness.

No cardStart the free evidence path without a paid plan.
Saved scanKeep the public endpoint result after the browser session.
Rescan laterRerun after TLS, header or provider changes.

Prefer to scan first? Open the free quantum security scanner.

Create Your Free Account

Start with Google, Microsoft or a one-time email code. You can add a domain now if you want the scanner to run after signup, but it is not required.

No cardNo passwordFree saved scan
Add a domain to scan after signup (optional)

Leave this blank to create the account first and scan later.

or use email code

No card or password is needed. The free account can keep scan evidence for rescans and badge qualification when you add a public domain.