Logo Neodigit - Agence web DijonNeodigit

Application security and cryptography

We integrate security from the design phase of your applications rather than as a layer added in panic. Code and infrastructure audits, penetration testing, secure architecture, GDPR compliance and advanced cryptography, including post-quantum. During a recent audit for a B2B SaaS vendor, we identified and fixed 12 critical vulnerabilities in three weeks, including an SQL injection flaw exposing 15,000 customer records. This type of intervention reduces data breach risk by 85% according to our internal measurements. Our methodology covers the full cycle: asset mapping, offensive testing, supported remediation and setting up a lasting DevSecOps pipeline so security remains a daily reflex, not an annual emergency project.

Most security incidents don't come from sophisticated attacks: they come from default configurations, forgotten dependencies, overly broad permissions and secrets left in code. We always start by eliminating these blind spots before discussing advanced cryptography. A serious audit gives you a clear map: what's critical, what's exposed, what can wait. We work with SaaS vendors, SMEs handling sensitive data, and projects anticipating the quantum threat. Our difference: we don't deliver a PDF report and an invoice. We support remediation, connect your teams to the right tools (SAST, DAST, secrets management), and set up a lasting DevSecOps process so security doesn't drop six months after we leave.

What we offer

Complete security audit
Assessment of your code, infrastructure, configuration and processes. Deliverable: prioritized report with realistic remediation plan, not an unreadable list of 400 alerts.
Penetration testing
Real attack simulation (black, grey or white box) to identify vulnerabilities before an attacker finds them. Executive and technical reports.
Secure architecture
Secure system design from the start: strong authentication, encryption at rest and in transit, isolation, secrets management, GDPR compliance.
Post-quantum cryptography
Integration of quantum-resistant algorithms (CRYSTALS-Kyber, Dilithium) to protect your data long-term. Document signing, transactions, archiving.

Who is it for?

SaaS vendors and startups
You're raising funds or passing a certification and your clients demand proof: audits, pentests, compliance. We prepare you for the hard questions from CIOs and auditors.
SMEs handling sensitive data
Health, legal, finance, HR: your data is subject to strong obligations. We audit and secure your stack without breaking everything or blocking your teams.
Long-term projects and sovereignty
Regulatory archiving, electronic signature, state data: when your data must stay protected in ten or twenty years, post-quantum cryptography becomes an architecture decision, not a curiosity.

Our approach

  1. 1

    Mapping and scope

    We start by mapping your assets, data and dependencies. Without this foundation, an audit misses the most critical points.

  2. 2

    Audit and testing

    Code analysis, infrastructure scanning, intrusion testing, cloud configuration review, secrets management. Each finding is prioritized by impact and remediation effort.

  3. 3

    Supported remediation

    We don't leave your teams alone with the report. We fix critical vulnerabilities together and train your developers on good practices using real project cases.

  4. 4

    Sustainable DevSecOps

    Automated checks in CI, dependency management, secret rotation, monitoring. Security becomes a reflex, not an annual emergency project.

Technologies used

OWASPBurp SuiteSonarQubeSnykHashiCorp VaultHSMPQC (CRYSTALS-Kyber/Dilithium)DevSecOps

Frequently asked questions

A technical challenge on this topic?

Let's discuss your context, we'll tell you what's feasible.