NULLWARDEN
Services

What we do for clients.

Everything we sell starts from the same place: a threat model, an understanding of your real estate, and evidence that the thing we claim works actually works.

Offensive security

Authorised testing, done properly

No scanner output repackaged as a report. Every finding has been exploited to prove it.

External and internal penetration testing

Full-scope testing against your perimeter and your internal network, using the same tradecraft an actual intrusion crew would — initial access, lateral movement, and privilege escalation.

Retest is included. We do not hand you a list and disappear.

Cloud security assessment

IAM, storage, network boundaries and serverless configuration reviewed against the misconfigurations that are actually exploited, not the ones that read well in a checklist.

We test IAM paths for privilege escalation, because misconfigured trust is where cloud breaches start.

Application security testing

Web, API, mobile and thick-client review by researchers who read your code, not just your endpoints. Business logic flaws and broken authorisation are where we spend our time.

Hardware and firmware testing

Embedded targets, boot chains, secure boot and firmware update paths. We look for the extraction, downgrade and rollback paths that turn a physical device compromise into permanent access.

Vulnerability research

Bugs we go looking for

Research runs on our own time and our own hardware, because the bugs worth finding are rarely the ones a bug bounty will pay for.

Kernel and hypervisor
Memory management, syscall surfaces, isolation boundaries and device drivers. We fuzz in a hypervisor so we can explore aggressively without a sacrificial host.
Active
Firmware and boot integrity
Secure boot bypass, rollback protection and firmware update verification across industrial, medical and automotive targets.
Active
Cryptographic implementation
Nonce handling, key derivation, signature verification and the places where a correct algorithm is wired up incorrectly.
Active
Protocol and parser analysis
Binary formats, media containers and network protocols where malformed input becomes code execution.
Active

Disclosure

We follow a coordinated disclosure policy. Customers with affected products are notified privately first and given a patch window before anything is published. Findings that affect critical infrastructure or safety-critical systems are reported to the relevant national CERT.

See published research
Hardening & assurance

Controls that survive contact with reality

A baseline is only useful if your engineers can maintain it. We build controls that are defensible, measurable and repeatable.

Platform baselines

Kernel configuration, LSM policy, service sandboxing and compiler flags, built for the platform you actually run.

Supply chain assurance

Build provenance, dependency pinning, reproducible builds and verification that the artefact you ship is the artefact you built.

Secure boot chains

Measured boot, key rotation and attestation designed to survive firmware updates and physical access.

Incident response

When it has already happened

Containment first, forensics second. The order matters, and getting it wrong destroys the evidence you will need.

Emergency response

Rapid triage, containment actions and evidence preservation, executed remotely within hours of your call. We stabilise first and investigate second, because availability usually matters more than a clean forensic timeline.

Forensics and scoping

Establish what was accessed, what was taken and what was changed. We deliver a factual timeline, the root cause, and the specific control that failed.

Retainer

A standing arrangement with a defined response time, agreed severity matrix and a team that already knows your environment. Most of our clients move to this after their first incident, because the second one is always more expensive than the first.

Discuss a retainer

Not sure which of these you need?

Most engagements start with a conversation, not a statement of work. Tell us what worries you and we will tell you honestly whether we are the right people for it.