Published in: Development

Safe Development Without Losing Speed

Published on: September 9, 2025

Security cannot be an afterthought at the end of a project: it must be integrated from the outset. If you want to deliver software quickly and without surprises, the key is to incorporate security into every phase of development. Learn why and how to do it, in clear and practical language.

What is Security by Design and DevSecOps?

Security by Design means thinking about security from the product’s conception: risks, architecture, and technical decisions are evaluated before writing code.
DevSecOps translates this approach into daily practice: it brings together Development, Security and Operations, automating controls and placing security as far to the left as possible in the lifecycle (shift-left).

The result: continuous security, no dramatic revisions at the end.

Why integrate security from the outset?

Fewer vulnerabilities in production. Detecting and correcting them during development avoids surprises.
Real time and cost savings. Fixing faults late is more expensive and consumes more resources.
Greater speed and quality. With automated security, rework and blockages are reduced before deployment.
Better experience for the team. Fewer emergencies, less stress, and more focus on innovation.

What specific practices should be implemented?

There’s no need to overcomplicate things: start by automating these fundamental parts of your CI/CD pipeline.

Static code analysis (SAST). Automatic scans that detect insecure patterns while programming.
Scanning of dependencies (SCA). Checks external libraries against vulnerability databases and automates critical updates.
Dynamic application security testing (DAST) in staging. Simulates attacks on the running application to detect flaws that only appear at runtime.
Automated penetration testing and periodic reviews. They complement scans with more in-depth testing.
Automatic gateways in the pipeline. If a critical test fails, promotion to production is blocked until it is corrected.

These practices make security part of the workflow, not an added obstacle.

And after deployment?

Security does not end when a version is released. You need:

Continuous monitoring and logging to detect anomalous behaviour.
Alerts and response playbooks to act quickly in the event of incidents.
Response drills so that the team knows what to do under pressure.
Regular reviews of architecture and configurations to adapt defences to new threats.

This completes the cycle: shift-left to prevent, shift-right to detect and respond.

Does it comply with regulations and inspire confidence?

Yes. Integrating security from the design stage makes it easier to demonstrate compliance with standards such as ISO 27001 or privacy requirements (e.g. data protection by design). In addition, demonstrating a secure development cycle improves customer and partner confidence: you not only reduce technical risks, but also legal and reputational risks.

You can start by integrating a SAST scanner and an SCA tool into the repository to catch bugs in the code and dependencies from the first commit; run DAST suites every time you deploy to staging to uncover issues that only appear at runtime; set automatic thresholds that block merges or releases if a critical flaw arises (so security is not left to ad-hoc decisions); and, very importantly, document and train the team so that security is a shared responsibility.

With adjustments to the pipeline and a little automation, you will quickly see results: less rework, more secure deployments, and a calmer, more productive team.

Would you like us to help you design and implement a DevSecOps approach tailored to your organisation?

Contact our team of experts and we will get you started.

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