ENISA's Secure by Design and Secure by Default Playbook

European Union Agency for Cybersecurity (ENISA) has once again delivered a document that deserves the attention of every cybersecurity professional, product owner, architect, auditor and CISO.

At first glance, many of the recommendations in the new Secureby Design and Secureby Default Playbook may seem familiar. After all, secure development, threat modelling, least privilege, vulnerability management and secure configuration have been part of industry best practices for years. However, what makes this publication stand out is not only what should be implemented, but also how organisations can demonstrate that it has actually been implemented. The playbook translates security principles into practical engineering activities throughout the product lifecycle, making them repeatable and measurable.

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As an auditor, I particularly appreciate one aspect. Increasingly, good security guidance is no longer limited to saying "implement this control." Instead, it also encourages organisations to think about the evidence proving that the control exists and works.

Another point that positively surprised me is the clear emphasis on supplychain security. ENISA gives it the visibility it deserves by treating supply chain protection as an integral part of Secure by Design. Considering today's software ecosystems, this emphasis could not be more appropriate.

My favorite element of the entire playbook is the strong focus on user-centric design. I have argued that security should become almost invisible during everyday business operations.

➡️ Security should not introduce unnecessary friction.

➡️ It should not force users to invent workarounds.

➡️ It should not become another administrative burden.

➡️ Security should be naturally embedded into business processes so that secure behaviour becomes the easiest behaviour.

Bravo to ENISA for making this principle so explicit.

Finally, I found Chapter 5 – Machine-processable Attestation particularly exciting. This is where I believe the next major transformation of cybersecurity governance is already beginning. Today, with the rapid evolution of AI, the paradigm is changing completely. Properly configured multi-agent AI systems can already assist organisations as virtual threat analysts, Security Operations triage specialists, vulnerability management assistants or TPRM experts.

They can continuously collect, correlate and validate evidence demonstrating that security controls are operating effectively. Potentially for 100% of the environment, continuously and automatically.

It fundamentally changes how assurance, compliance and auditing will be performed in the coming years.

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Author: Sebastian Burgemejster