Principles of Secure Development
Security should never be an afterthought or a "band-aid" applied when an application is already fully developed. Security by Design means that security thinking permeates the entire architecture from day one. By identifying risks early, you save not only time and money but also build a system robust enough to withstand future threats.
By following established standards such as the OWASP Top 10, we can systematically protect against the most common and critical vulnerabilities, such as SQL injections and authentication flaws.
Secure Coding in Practice
- Input Validation: The golden rule: never trust data from the user. All input must be sanitised and validated to prevent XSS and injection attacks.
- Least Privilege: Systems and users should only be given the permissions absolutely necessary to perform their task. This limits the damage in the event of an intrusion.
- Secure API Design: APIs are often the gateway to your data. Always use encryption (TLS 1.3), strong authentication (JWT/OAuth2), and rate limiting.
Secure SDLC & DevSecOps
To ensure a high security level over time, security activities must be integrated into the daily development cycle. What we call DevSecOps is about automating security checks so they occur with every code change.
This includes SAST (Static Analysis Security Testing) which scans source code for flaws, and DAST (Dynamic Analysis Security Testing) which tests the running application from the outside. By also managing your infrastructure as code (Infrastructure as Code), you can ensure the server environment is consistently and correctly configured.
Why Isn't a Firewall Enough?
A common misconception is that a firewall protects everything. But if your application has a vulnerability — for example, a flawed login page — an attacker can walk straight through the firewall via open web traffic. This is why application security is so critical — it protects the software itself, regardless of which network it resides on.
How We Help
At Viharnis, we help you quality-assure your code and build a robust development process. Whether you need a review of an existing application or help setting up a secure CI/CD pipeline, we have the expertise to make your software safe for both you and your customers.