Healthcare and legal apps: protecting sensitive client data

Start with the information, not the technology

Healthcare and legal workflows can hold highly sensitive material: patient information, case files, correspondence and identity documents. The security consequences depend on what is stored, who can access it and where it travels. This guide is practical security advice, not a determination of your regulatory obligations.

Draw a simple data map

List collection forms, document uploads, storage, exports, notifications, backups and connected suppliers. Include monitoring tools and AI providers. Information copied into a support log or model prompt still needs consideration even if the primary database is well protected.

Assess role and matter boundaries

Use synthetic records to establish what each user should see. For a legal application this may involve separate clients or matters; for healthcare it may involve clinical roles and patient relationships.

• Check search, exports and attachments as well as screens
• Review temporary access and staff offboarding
• Audit exceptional or emergency access where applicable
• Prevent private document links from becoming public
• Check that revoked access no longer retrieves material

Include AI features explicitly

Determine which documents may be sent to a model, which users can retrieve them and what the provider retains. Review supplier arrangements and minimise input data. An instruction to keep data confidential is not a substitute for access controls or appropriate contractual arrangements.

Agree safe testing and appropriate evidence

Prefer a representative environment with synthetic data, named contacts and clear exclusions. Match the assessment scope and report to your buyer’s requirements. A complimentary scoped assessment is not a compliance certification or a substitute for legal advice and specialist assurance.