Sigreturn Labs
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We find the flaws before someone else does. Unknown, exploitable vulnerabilities in the systems you depend on, from userland applications and operating-system kernels to mobile apps and blockchains. And when you need breadth and assurance rather than a single deep dive, classic, methodology-driven security audits.
Two modes: deep offensive research, and methodology-driven audits.
Deep, offensive research to surface unknown vulnerabilities in hard targets, through targeted auditing, fuzzing, and reverse engineering, backed by a proof-of-concept that proves real-world impact.
Methodology-driven assessments when you need broad coverage and assurance: web applications first, with the same offensive mindset behind every test, not a checkbox run.
The same four steps, whether it is a deep research effort or a scoped audit.
We agree on the targets, the rules of engagement, the depth, and the goals.
We map the attack surface and stand up the tooling and fuzzing harnesses we need.
Auditing, fuzzing, and exploitation against the agreed scope, methodical and logged.
Every finding written up in full, with working proof-of-concept and remediation.
Every issue, proven and prioritized, with everything your team needs to reproduce and fix it.
All research runs under a written authorization and agreed rules of engagement. We test only what you own or are authorized to test. Findings are handled in strict confidence, and any coordinated disclosure follows your timeline. Reverse engineering of malware and post-incident analysis are handled under Reverse Engineering and Forensics.
Tell us what you want tested. We will scope the depth and the targets with you.