Cybersecurity
Secure Product Development Framework(SPDF)
In one line
A documented, risk-based set of processes that build cybersecurity into a medical device across its full lifecycle.
Definition
A Secure Product Development Framework (SPDF) is a documented set of processes that integrates security activities - threat modeling, secure design, secure coding, security testing, vulnerability management, and end-of-support planning - into every phase of the medical device product lifecycle. FDA's September 2023 cybersecurity guidance positions an SPDF as the recommended foundation for meeting section 524B, and explicitly calls out IEC 81001-5-1 ("Health software - Part 5-1: Security - Activities in the product life cycle") as an acceptable industry framework.
Why it matters
An SPDF is the antidote to the 'cybersecurity is QA's job at the end' antipattern. Mature MedTech teams encode the SPDF as procedures inside the existing QMS - reusing design controls, design review checkpoints, and CAPA - rather than running cybersecurity as a parallel program. This makes audit responses and CAPA traceability dramatically easier and avoids duplicate documentation.
Common pitfalls
- •Adopting an SPDF on paper but not running its activities (threat models, security reviews) at the design checkpoints.
- •Treating IEC 81001-5-1 conformance as optional after FDA's explicit endorsement in the 2023 guidance.
- •Keeping security artifacts outside the QMS, leading to versioning and traceability problems at audit.
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