ACTIVE DEFENSE FOR THE AI ERA
Attackers have AI now.
So does your defense.
Vantuz plants decoys an intruder cannot resist, tells you the moment one is touched,
and can shut the door before they reach what matters. Enterprise-grade active defense for every business. No agents to install.
Set up in minutes. No security team required. Free to start.
Works where you already work.
Not another console to babysit.
Overview · last 30 days
9 things to look at.
8 decoys armed, 4 exposures open.
Signals
Every touch on a decoy, in one curve.
Decoys have no legitimate use, so any activity on them is a signal worth reading. This is all of it, over time.
Response
When a decoy fires, this is what answers.
1 of 3 providers connected. Containment stays off until you turn it on.
Recent campaigns
Click around, deploy a decoy, block a campaign, verify a fix. It all stays in your browser. Open your own workspace
01 · PLANT
Decoys only
an intruder would touch.
A fake database password in a backup script. A decoy contract on the shared drive. A decoy document inside your AI assistant's knowledge base. Nobody on your team has a reason to use them, so when one is used it is not noise. It is someone inside.
02 · KNOW
The moment it happens,
you know who, how, and how bad.
Source, network, intent and a risk score you can read, mapped to MITRE ATT&CK and written up in plain English. Vantuz tells human from script from AI agent, because in 2026 the intruder is often software.
Attack campaign: staging-db-config
A decoy database credential was tried from three sources in two hours. The pattern is consistent with automated discovery: find the backup script, try the connection, retry on refusal.
03 · ACT
Shut the door,
or let Vantuz shut it.
Connect Cloudflare or AWS and Vantuz can challenge or block the source when a decoy fires, within limits you set. AWS counts first and blocks only when you allow it. Off by default. Every action logged and reversible.
WHERE THE NEXT MOVE HAPPENS
Your environment.
Your decoys.
From a repository to an AI knowledge base, give an intruder something that gives them away. Three of the ways companies use Vantuz today.
A leaked database password, a stolen API token, a cloned repository. Decoy credentials next to the real ones turn the first use into a signal, before the attacker reaches production.
Ransomware crews and curious insiders read before they act. A decoy contract, board deck or HR file tells you the moment someone opens what they should not.
Your assistants read your knowledge base; so does a hostile agent. Decoy documents in the knowledge base catch an agent, yours or theirs, the moment it goes where it should not. A decoy OpenAI or Anthropic key, planted with an API address on your own verified domain, fires when a tool uses that configuration.
EXPOSURE SONAR
Close the doors
before anyone tries them.
Most breaches start with something left open: a config file on the web, an admin without two-step verification, email anyone can forge. The Sonar finds it from the outside, explains the fix in plain steps, and confirms when it is really closed.
Read-only checks on the domains and accounts you proved are yours: email that can be forged, files and code exposed, databases reachable from the internet, admin accounts without two-step verification.
Every finding comes with what it is, why it matters, the risk of changing it, the steps, a way back, and a message you can hand to your IT provider. It is marked fixed only when a later check confirms it.
Where you cannot fix it yet, place a decoy right in the exposed spot. It alerts you the moment anyone tries to use it.
BROWSER DECOY · EARLY ACCESS
Stolen sessions,
caught when used.
Infostealer malware and hostile extensions copy the cookies that keep you signed in, then replay them from their own machine. The browser decoy keeps one fake session next to the real ones. If anyone replays it, they get an ordinary 404 and you get an incident with the source and what to do first.
See how the browser decoy works- 01A decoy sessionThe extension keeps one fake login session in the browser, next to the real ones.
- 02The jar is copiedInfostealer malware copies every session in the browser, the decoy included.
- 03Replayed, answered 404The attacker replays them. The decoy domain answers with a plain 404, so they learn nothing.
- 04You knowVantuz opens an incident, scores it High and emails you plain next steps, starting with a quick check with the person.
SEE IT LIVE
Watch it catch an attack.
Then decide.
Thirty minutes, your environment. We plant a decoy, trigger it on purpose,
and you watch the whole response happen. No slides.
What is a decoy?
A credential, document, link, package or browser session that looks real and has no legitimate use. Nobody on your team should ever touch it. When someone does, you have a real signal, not a maybe.
Is this what people call deception?
Yes, that is the technology underneath. We call it active defense because that is what it does for you: it turns your environment into something that fights back, instead of something that waits to be found.
Do I need a security team?
No. Vantuz was built for companies that do not have one. Findings are written in plain English, the response can run on rules you set, and a human at Vantuz is a message away.
What happens when a decoy fires?
You get an alert within seconds with who, where and how serious. Vantuz investigates automatically, scores the risk and, if you have connected a provider and enabled it, contains the source. Everything is logged.
What is a browser decoy?
A small Chrome or Edge extension that keeps one fake login session on a decoy domain Vantuz controls. It cannot read your real cookies or your browsing. If malware or a hostile extension copies the browser's cookies and someone replays the fake one, the decoy domain answers with an ordinary 404, so the attacker learns nothing, and Vantuz opens an incident with the source and plain next steps. It is in early access. How the browser decoy works.
How long does setup take?
Minutes. Create a decoy, place it where an intruder would look, done. There is no agent to install and no change to your network. Start with three, free, or watch it live first.