Skip to content
Qubitron Security

Application security by Qubitron Labs

The guardian of your software: web, mobile and desktop apps, APIs and smart contracts.

AI can take your app apart without the source code. We find what it sees, then lock it down.

We test and harden web, mobile, desktop and smart-contract applications, with evidence of what an attacker could extract and the fixes that stop them.

Book a free exposure callRequest an audit

We only test applications you own or are explicitly authorized to test.

What we do

Five services. One question: what can an attacker take?

All services

Already happening in public

Not a forecast. It's on the record.

Creators running AI reverse-engineering tools against well-known apps, on camera, in October 2026. Their words, their results, linked to the source. Hover a card to read the quote.

Your app ships its own blueprint.

Scroll to harden one file. Names and values turn to noise; the app runs the same. An audit finds what this file gives away. Hardening is what changes it.

What the exposure audit covers
assets/pricing-4f2a1c.jsExposed
// Sent to every visitor's browserconst API_HOST = "https://api.acme-app.com/v2";const ADMIN_EXPORT = "/internal/admin/export"; export function quote(plan, seats) {  const base = PRICE_TABLE[plan];  const discount = seats > 50 ? 0.2 : 0;  return base * seats * (1 - discount);} export const canExport = (user) =>  user.plan === "enterprise";
Scripts and binaries
Every rule computed on the client.
Network calls
Endpoints and the shape of your data.
Structure
How the product fits together.
Source maps and symbols
If public, your original code.

Why you should worry

An AI agent can now take your app apart without the source code.

REA, a free toolkit that went viral in October 2026, lets coding agents rebuild an app from what it ships: web bundles, mobile packages, desktop binaries.

What it took you

  • Months or years of work
  • A team and a budget
  • Every pricing rule, flow and edge case you got right

What a copy needs now

  • Your live app
  • One AI agent
  • 0 lines of your source code
  1. 01

    Your head start

    They study your working product instead of designing one.

  2. 02

    Your secrets

    Pricing rules, limits, keys and endpoints ship in your client.

  3. 03

    Your market

    A copy can launch cheaper, under another name, far faster.

What we stand guard over

Whatever you ship, someone can now read it with AI.

How it works

Scoped, tested, proven, fixed.

How an engagement runs

  1. Scope and authorization

    A short call to agree what is in scope, what is out, and when. You confirm in writing that you own or are authorized to test it.

  2. We test

    AI-assisted discovery across the build you ship, then manual verification of every finding. No false positives reach you.

  3. Evidence-backed report

    Each finding with severity, exact location, proof and a fix. Plus a plain-language summary for the people who sign things.

  4. Fix and re-test

    Your team fixes, or ours does. Then we re-run the same tooling and show what has changed.

What you get

Not a scanner dump. Findings you can act on the same day.

Every finding names where it lives, shows the evidence that proves it, says what it lets an attacker do, and how to fix it. A person confirms each one before it reaches you.

  • Technical report, in priority order
  • One-page summary for whoever signs off
  • Evidence: decompiled excerpts, captured requests, extracted values
  • Fix plan, then a re-test that marks each finding closed or open
Finding QS-07High

Pricing rules and an admin export route are readable in the shipped bundle

Where
assets/pricing-4f2a1c.js, lines 2 to 8
Evidence
const API_HOST = "https://api.acme-app.com/v2";const ADMIN_EXPORT = "/internal/admin/export";export function quote(plan, seats) {  const base = PRICE_TABLE[plan];  const discount = seats > 50 ? 0.2 : 0;  return base * seats * (1 - discount);
Impact
Anyone can lift the volume-discount logic and call /internal/admin/export directly to test whether it checks authorization.
Fix
Move quote calculation server-side, return only the price. Put the export route behind a server-side role check and remove it from the client.
After re-test
Closed
An illustration of the format, built from the sample file above. Not a client finding.

Rules we don't bend

Guarding software is a position of trust. So we work in the open.

Read the rules of engagement
  1. 01

    Authorization first

    No testing without written permission from someone entitled to give it. We decline requests about other people's products.

  2. 02

    AI-assisted, human-verified

    We use the same AI tooling attackers use to cover ground fast. A person reproduces every finding before it is reported.

  3. 03

    Evidence, not opinion

    Each finding comes with the excerpt, request or value that proves it, so your team can check it for themselves.

  4. 04

    Honest about limits

    Testing finds issues; it can't prove their absence. Hardening raises the cost of copying; it can't make copying impossible.

From the blog

What changed this month, and what it means for your app.

All posts

Free exposure check

Not sure how exposed you are? Get a free exposure check.

Give us the public address of one application you own. We take a short, non-intrusive look at it the way an AI-assisted attacker would, and send you the top things we notice. No report, no obligation.

Get the free exposure checkOr book a call
exposure check · illustration
  1. Target: https://app.example.com (web, owner-confirmed)
  2. Shipped bundles: 14 scripts, 2 source maps public
  3. Readable logic: pricing tiers, trial length, seat discount
  4. In bundle: 1 analytics key, 1 internal hostname, /admin/export
  5. API surface from client: 23 endpoints, 2 without auth header
  6. Summary drafted. Recommend: source maps off, move pricing server-side

An illustration of the kind of summary you get. Not a real result.

Questions

Before you get in touch

Ask us anything else
How much does it cost?

It depends on what you ship: one web app with one API is a very different job from three platforms and partner integrations. We don't publish prices. Request a quote, we discuss scope and price on a short call, and you get a fixed price in writing before anything starts.

Do you need access to our source code?

Not for an exposure audit, a penetration test or a mobile test: we work from the build you ship, the way an attacker would. Hardening and smart contract audits do need the code, under a confidentiality agreement.

Can you look at a competitor's app for us?

No. We only test applications you own or are explicitly authorized to test, and we confirm that in writing before any work starts. See our rules of engagement.

Is the free exposure check really free?

Yes. It is a short, non-intrusive look at the public build of one application you own and a summary of the top things we notice. It is not an audit and does not come with a report. See the free exposure check.

We just need a report for a customer's security questionnaire. Is that you?

Yes. A penetration test comes with a technical report, an executive summary and a letter of attestation you can share. Tell us the deadline in the message.

Next step

Find out what your app gives away. Book a free exposure call.

Thirty minutes with an engineer, not a sales deck. Tell us what you ship; we tell you what we'd look at first and what an audit would involve.

Book a free exposure callRequest an audit

We only test applications you own or are explicitly authorized to test.