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lussy

Software we build.
Systems we break.

Lussy is a UK engineering company. We build dependable software and test it the way real attackers would.

An engineer working on a laptop at an outdoor table

Build it properly. Then try to break it.

One team that writes production software and attacks it for a living, so security is part of the work from day one.

Our product

CloakAI, the real-time AI interview assistant.

It listens to interview questions and shows structured answers on a private overlay in under two seconds.

About CloakAI
From question to answer

1,870ms

  1. 120

    Audio captured

  2. 640

    Transcribed

  3. 1,480

    Answer reasoned

  4. 1,870

    On your screen

Pipeline timings published on cloakai.me.

How every engagement runs

A tidy desk with a monitor, tablet, keyboard and notebook seen from above
  1. Scope

    A fixed written scope, timeline and price before any work starts. No open-ended retainers.

  2. Build

    Short cycles with working software you can use every week, reviewed for security as it is written.

  3. Test

    Manual testing by people who think like attackers, with every finding reproducible.

  4. Support

    Documentation, handover and retesting. We stay available after launch if you want us to.

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Have something to build, or something to test?

Tell us what you are working on. We reply within one working day with next steps and an honest view of whether we are the right fit.