SkullSploit
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Pay us to hack you.

Offensive Security & Web Application Penetration Testing

Your application works. We find out who else it works for.

We test web applications and the APIs behind them by hand, show you what an attacker could actually do, and tell your engineers exactly what to change.

Request a security assessment What we do

Why manual

A scanner tells you what looks broken. We tell you what someone can actually do.

Automated tools find known problems. They cannot tell you your application is doing exactly what it was built to do, for the wrong person.

  • Another user's data

    An account changes an identifier and reads a record belonging to someone else.

  • A workflow driven out of order

    A mandatory step is skipped or repeated, and the application accepts the result.

  • An API that answers too much

    The front end hides the button. The endpoint behind it still takes the call.

  • A role that reaches too far

    A low-privilege account reaches an admin function, because the check lives in the interface.

  • Two harmless features, chained

    Neither is a vulnerability alone. Used together, they are.

What we do

Offensive security, and nothing else.

Four angles on one question: what somebody can actually do with your application. An engagement is scoped across them rather than bought one at a time. Tell us what you made and who is meant to do what in it. Working out what is worth testing is our job, not yours.

What we testAssessments and pricing

Where we stop

The other half is Skull Solutions.

We attack the application. How it should have been designed, and the engineering that closes what we find, is our parent company's work rather than ours. Same people to ask, different side of the line.

  • Application security consulting

    Security architecture review, threat modelling, secure code review and attack surface review: how the application was designed, and what it was meant to defend against.

  • Secure software engineering

    Closing findings in your codebase, and building the parts where getting the security wrong is the whole risk. Not general development, and never a product build with a security label on it.

Ask us either way. If what you need sits with Skull Solutions we will say so and hand you over, rather than stretch a testing engagement to cover it.

Who it is for

You own the software. Nobody owns the security.

  • Startups

    You are shipping fast and nobody on the team owns security.

  • Small businesses

    No security department, and a business that runs on one application.

  • Developers and agencies

    An independent test before you hand something to a client.

  • Teams building with AI

    AI writes the code. It does not review its own access control.

How it works

Scope. Test. Report. Retest.

Nothing is touched before the scope is agreed in writing. Nothing is closed before the fix has been retested.

  1. Scope

    We agree in writing what we are allowed to test.

  2. Test

    We attack the application by hand, the way someone else would.

  3. Report

    You get what we found, how bad it is, and how to fix it.

  4. Retest

    Your team fixes it. We check that it is really fixed.

What a finding contains

  • What we found

    The vulnerability in plain terms, and where it lives.

  • How we exploited it

    The path actually taken, not the name of a category.

  • How to reproduce it

    The requests and account state needed to see it happen.

  • Why it matters

    What it would let someone do to your data, your users or your revenue.

  • How to fix it

    The check that is missing, and where it belongs.

  • Whether the fix worked

    A retest of the findings, included for fifteen days.

Need your application tested?

Send a paragraph about what you built. That is enough to start.

Request a security assessment