VANTAGEA / OFFENSIVE & AI SECURITY
Attack your AI before someone else does.
We red-team AI systems, the infrastructure they run on and the companies you plan to buy. Every finding is proven before it reaches you.
Proven, not flagged
Lab-reproduced, re-verified, researcher-signed
Prompt to cloud
Models, agents, tools & infrastructure
Fixed scope
Fixed fee, named targets & clear timelines
Outside US law
UK-incorporated, independent jurisdiction
WHAT WE OFFER
Security across every layer of the stack
From a single test before launch to a programme across your whole estate. Every engagement ends with fixes your engineers can ship.
AI & AGENT RED TEAMING
Attack your AI before someone else does.
We attack your models, agents and their tools the way an adversary would, then follow every path to the cloud accounts they can reach.
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AI INFRASTRUCTURE & ISOLATION
Prove your containment boundary holds.
We try to break out of the sandboxes, micro-VMs and proxies that keep one customer's AI workload away from another's.
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SECURITY ASSESSMENTS
Ship the release, not the vulnerability.
We test your web apps, APIs and cloud with or without source code. We also check that past security fixes actually closed the hole.
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M&A SECURITY DUE DILIGENCE
Know what you're buying before you sign.
We show you the target's real security position, including the exposed assets the data room left out, in time for signing.
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ENTERPRISE PROGRAMMES
Hold the high ground across your whole estate.
We run red team cycles across AI, cloud and identity on a schedule, so testing keeps pace with what you ship.
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PUBLIC GOOD
Security for the teams that can least afford a breach.
We test for charities and public-interest teams at a discount or for free. We also report bugs privately to open-source maintainers.
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Have a target and a deadline?
Bring us a launch gate, an acquisition target, or an AI and runtime architecture you are putting into production. We will scope the engagement and define the deliverables up front.
Book a scoping call
Know what you are buying before you sign.
Before or after close, we show you the target's real security position, including the exposed assets the data room left out, on your deal calendar.
Found at machine scale. Signed off by a researcher.
Autonomous discovery searches your attack surface and source code for bugs, including security fixes that missed a case. Nothing reaches you until it has been reproduced in a lab and independently re-verified.
British, independent, outside US jurisdiction.
Vantagea is incorporated in England and Wales and operates outside the reach of the US CLOUD Act and FISA. We work with regulated, defence and international teams that have strict sovereignty requirements.
Every finding, proven.
A scanner tells you what might be wrong. We show you what is, and how we know.
01
Vantage
We map your external attack surface, agent inputs, toolchains and trust boundaries the way an adversary does.
02
Attack
Researchers and autonomous discovery attack the agreed targets. Nothing else is touched.
03
Prove
Each finding is reproduced in an isolated lab with causal evidence, re-checked by an independent QA pass and signed off by a researcher.
04
Close
You get prioritised fixes mapped to the frameworks you report against, and a retest that proves each one is closed.
Every engagement runs under signed rules of engagement for named targets only, with agreed rate limits, prohibited actions and an emergency stop on both sides. Third-party platforms are tested only within their published terms.
Tell us what you're defending
Shipping AI and autonomous agents, hardening multi-tenant runtime infrastructure, or evaluating an acquisition target. Bring us your timeline and we will scope the engagement.
Book a scoping call