Services · Cyber Security

Secure out of the box.

We build devices that start, update and connect securely. And we monitor them for as long as they are in the field.

What we stand for

Security by design, from concept into the field

  • The measures follow from the threat analysis

    First the threat and risk analysis, then the security requirements, then the architecture.

  • From the component to the cloud

    Secure boot on the device, encrypted storage, a protected connection, roles in the application. One gap is enough for an attacker. So we build every link of that chain.

  • Safety and security go hand in hand

    Both start with analysis: hazard analysis for safety, threat analysis for security. Their requirements feed into the same architecture and the same development. The result is one evidence package for both.

  • Secure throughout the operating life

    The Cyber Resilience Act requires vulnerabilities to be monitored and fixed throughout the support period. We take on that task for as long as the device is on the market.

  • Cyber Resilience Act
  • IEC 62443
  • EN 18031
  • NIS2
  • ISO 27001
  • prEN 50742 (draft)

What we take on

  • Threat and risk analysis

    We identify your product's attack surfaces, assess them and derive the security requirements from them.

  • Secure boot and secure updates

    The bootloader only accepts signed versions. If an update fails, the device falls back to the previous version and keeps running.

  • Keys throughout the device's life

    Keys and certificates are installed at the end of the production line and renewed during operation. Special cases are covered too.

  • Encryption, roles and permissions

    Encrypted storage, disabled services, separated permissions. Who may do what belongs in the data model.

  • Software bill of materials and CVE monitoring

    The SBOM lists every third-party component with version and licence. We assess reported vulnerabilities against the requirements and tell you which of them affect you.

  • Evidence for the CRA and the RED

    Risk assessment, SBOM, test reports and the vulnerability handling procedure belong in the technical documentation that the CRA and the RED require.

Security lasts only as long as someone keeps working on it.

Your benefits at a glance

  • Fewer reports that concern you

    Not every reported vulnerability affects your device. We check against the version and configuration actually installed before we pass anything on to you.

  • The 24-hour deadline is workable

    The Cyber Resilience Act requires an actively exploited vulnerability to be reported within 24 hours. With continuous monitoring, you can use that time for the decision.

  • An update path that works

    A patch is only useful once it reaches the device. The route there is designed into the architecture and tested before series production starts.

  • Security and regulatory approval in one package

    The evidence for the CRA, the RED and functional safety comes out of the same project. That saves a second round with the assessment body.

From threat to evidence

On request as a fixed-price contract.

  1. Classification

    Which rules apply to your product: the Cyber Resilience Act, the Radio Equipment Directive with EN 18031, IEC 62443, and for machinery in future prEN 50742.

  2. Threat analysis

    Attack surfaces, the attacker model and the assets to be protected. Assessed by likelihood and impact.

  3. Security concept

    The measures are defined for each requirement: signatures, key management, encryption, roles. Plus the question of where a key is generated and who may renew it.

  4. Implementation

    Electronics, firmware and services are developed according to this concept. Every version passes through static analysis, review and test.

  5. Evidence

    Risk assessment, SBOM, test reports and the vulnerability handling procedure go into the technical documentation.

  6. Monitoring in the field

    New vulnerabilities are assessed against the requirements, and security updates are built and delivered for as long as the support period runs.

Build on our foundation

  • Logo qdCoreX
    Operating system

    qdCoreX

    Buildroot-based Linux with a mainline LTS kernel. Fail-safe updates, logging and certificate management are already built in.

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  • Logo qdCloud
    IoT platform

    qdCloud

    Device management, OTA updates and the certificate service. The route a correction takes to reach the device.

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  • Logo qdTest
    Production test

    qdTest

    Programming and testing at the end of the production line. This is where keys and certificates go into the device.

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Transparency from the start

Does the Cyber Resilience Act apply to our product?

If it has digital elements and is placed on the EU market, most likely yes. The reporting duties apply from 11 September 2026, the requirements on the product and on vulnerability handling from 11 December 2027. We classify your case at the outset.

Who reports a vulnerability to the authority?

The duty lies with the manufacturer, which means you. We provide the basis: we detect the vulnerability, assess it against your device and prepare the content of the report.

Our device is already in the field. Is it too late?

No. We go through the software, produce the missing SBOM and tell you which gaps exist and what an update path would cost.

Where is the work done?

In Offenburg, and nowhere else. We work with our own people. Whoever designs the key management sits in the same building as the people who build the firmware and the production test.

Do you work with AI?

Yes, systematically. Anything a tool contributes goes through the same checks as every other line of code: static analysis, review, test. We build our AI system ourselves, so we know what it does, and we keep improving it.

Tell us about your next project.

Tell us about your product and your schedule. We will tell you how we would approach the project and whether we see any major risks. The assessment, up to an indicative price, is free of charge.

Florian Seibold

Managing Director

info@querdenkerengineering.de

+49 7807 890 80 10