Software & hardware security testing

Find it before
they do.

Skygge is an independent security testing practice. We attack your software and hardware the way an adversary would — escalate every signal to real impact, and hand you a reproducible proof. Not a theoretical risk rating.

Software & hardwareWorking proof of conceptClear disclosure
poc.sh — F142 · auth-bypass
$ ./poc.sh --target https://app.example.com
[*] establishing low-priv session … ok
[*] replaying with crafted X-Forwarded-Authorization
    HTTP/1.1 200 OK
[+] AUTH BYPASS CONFIRMED — admin session issued
    { "role": "admin", "user": "victim@corp.example" }
[+] read 3 records from /api/admin/users (PoC limit)
↑ every finding ships exactly like this
What we do

Engagements

Scoped to your threat model, priced to the work — not the clock.

Software

Software security testing

Source-level review and dynamic testing across web, APIs, mobile, desktop and smart contracts — wherever the logic and the money live.

Hardware

Hardware security testing

Firmware, embedded & IoT devices and secure elements — extraction, fault injection, side-channel and protocol attacks, down to the silicon.

Research

Vulnerability research

Deep, multi-pass study of a target until the critical bug surfaces. We don't stop at the first medium.

Proof

Proof-of-concept exploitation

Every finding shipped with a working, reproducible PoC and an honest blast radius — so your team can confirm it in minutes.

How we work

From code to proof

A repeatable method, run until the impact is undeniable.

01

Study

Model the system or device — data flows, trust boundaries, privilege edges — before touching a payload.

02

Hunt

Reason from the model and the attacker's goals to the flaw the design lets through.

03

Prove

Escalate the signal to concrete impact and build an end-to-end, reproducible exploit.

04

Report

A clear write-up with a working PoC and a fix your team can act on today.

What a finding looks like

Proof, not theory

You get the same package an attacker would assemble — only handed to you first.

  • A reproducible script that fires the exploit on demand
  • A recorded walkthrough a triager can follow on one watch
  • The concrete impact — what was read, moved, or bypassed
  • A fix, scoped to the root cause, not the symptom
Get in touch

Eyes on your product
before attackers find the gaps.

Tell us what you're shipping. We'll tell you how we'd break it.