Post-Quantum Readiness
How Healthcare and Financial Organizations Can Start a PQC Readiness Program
Healthcare and financial organizations face unique PQC readiness challenges with HIPAA, PCI DSS, and DORA compliance. Learn how to start crypto inventory and migration planning in regulated environments.
How Healthcare and Financial Organizations Can Start a PQC Readiness Program Regulated industries face a unique PQC readiness challenge. They manage the most sensitive, longest lived data. They operate under the strictest compliance frameworks. And they depend on complex ecosystems of third party vendors, managed services, and legacy systems that were not designed with cryptographic migration in mind. Healthcare organizations protect patient data governed by HIPAA. Financial institutions protect transactions, account data, and personally identifiable financial information governed by PCI DSS, DORA, GLBA, and emerging quantum specific regulatory guidance. Both sectors share a common problem: they cannot migrate to post quantum cryptography until they know where cryptography is deployed — and most cannot answer that question completely today. This article provides a practical, phased framework for healthcare and financial organizations to start their PQC readiness program, with specific attention to compliance alignment, vendor management, and executive reporting. Phase 1: External Cryptographic Posture Baseline (Weeks 1–4) Start With What Regulators and Auditors Can See The fastest way to establish a cryptographic baseline is an external posture assessment on every domain your organization owns. This surfaces: Every publicly visible TLS certificate (algorithm, key size, issuer, expiry) DNS records and host coverage HTTP security headers TLS versions and cipher suites negotiated on each endpoint External assessment has a key advantage in regulated environments: it requires zero infrastructure changes, zero agent deployments, and zero credential sharing. You can start immediately without a change control board, without security architecture review, and without touching production systems. Key Questions for Healthcare Organizations Which patient portals, telehealth platforms, and provider facing applications use TLS certificates? Which health information exchanges (HIEs) and EHR integrations terminate TLS on your behalf? Which business associates (BAs) and covered entities have cryptographic dependencies on your infrastructure? Are your HIPAA Security Rule technical safeguards — access controls, audit controls, integrity controls, transmission security — mapped to your cryptographic inventory? Key Questions for Financial Organizations Which customer facing services (online banking, mobile apps, payment gateways) use RSA or ECC in their TLS endpoints? Which third party processors, ACH gateways, and trading platforms terminate TLS connections to your environment? Are your PCI DSS 4.0 cryptographic requirements (Requirement 3 for data at rest, Requirement 4 for data in transit) traceable to specific certificates and algorithms? For EU regulated entities: does your DORA operational resilience documentation include cryptographic risk? Phase 2: Internal Crypto Inventory and Compliance Mapping (Weeks 4–8) Expand to Internal Discovery After establishing your external baseline, inventory cryptographic dependencies inside your perimeter: Database encryption at rest (TDE, tablespace encryption, column level encryption) Application level encryption of sensitive fields (PII, PHI, account numbers) Internal PKI and certificate lifecycle management infrastructure Cloud KMS keys (AWS KMS, Azure Key Vault, GCP Cloud KMS) HSM resident keys and their algorithm configuration SSH host keys on critical servers VPN and network encryption configurations Map Finding