Security,
close to the metal.
Swayor audits software, games and Windows systems, and develops firmware, bootloaders, kernel drivers and hypervisors.
- Work under NDA
- From user mode to firmware
- Based in France
Technologies and standards we work with
x86-64 · UEFI · EDK II · Secure Boot · TPM 2.0 · Windows internals · WDM · KMDF · Minifilters · WFP · ETW · Intel VT-x · AMD-V · EPT / NPT · VBS / HVCI · PE / COFF · C · C++ · Rust · Assembly
Where we work, by privilege level.
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Applications & games Ring 3
User-mode software, game clients, anti-cheat
Audit
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Windows kernel Ring 0
Drivers, minifilters, services
Audit · Build
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Hypervisor Ring −1
Intel VT-x, AMD-V, EPT, introspection
Build
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Firmware & boot Ring −2
UEFI, Secure Boot, bootloaders
Build
Our approach.
Most of our work happens below the application layer: in binaries, kernel code, firmware and the hardware interfaces underneath.
- Low-level work
- We work with debuggers, disassemblers and hardware datasheets every day, and follow software down to the instruction.
- Confidentiality
- Your code, binaries and our findings stay with the people working on your project. We never share or reuse them.
- Findings you can act on
- Each finding comes with its context, its impact and how to fix it, not just a severity score.
- We build what we audit
- We also write drivers, firmware and hypervisors, and that experience shapes how we review them.
We audit existing systems and build new low-level components.
Both rely on the same knowledge of how software, operating systems and hardware interact.
Audit & research
Independent security assessments of software, games and Windows systems.
- Software security audits Ring 3 Security reviews of applications, SDKs and protocols, from source code to compiled binaries.
- Game security Ring 3 Assessment of anti-cheat, anti-tamper and integrity mechanisms in games.
- Windows systems security Ring 0 Research and assessments of Windows internals, kernel components and platform security features.
Systems engineering
Custom low-level development for components that need to be stable, fast and secure.
- UEFI firmware & bootloaders Ring −2 Design and development of UEFI components, boot managers and trustworthy boot chains.
- Windows kernel drivers Ring 0 Kernel-mode drivers for Windows, built for stability, security and long-term maintenance.
- Hypervisors & virtualization Ring −1 Custom hypervisors, virtual machine introspection and hardware-enforced isolation.
How we work.
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01
Scope
We agree on objectives, scope and constraints, and sign an NDA before you share anything sensitive.
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02
Analyze & build
The engineers you talk to do the work, with regular check-ins along the way.
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03
Deliver
A written report or production-ready code, documented and reviewed, in English or French.
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04
Support
Help with fixes, retesting and maintenance, if you need it.
Have a project in mind? Tell us about it.
Describe the context and what you need. We’ll tell you plainly whether and how we can help, under NDA if needed.