External Infrastructure

See what attackers see. Fix it before they act.

Agents find the internet-facing systems tied to your domain, subsidiaries included, then exploit them the way an adversary would: real attacks, chained into proven paths. Each path comes with a fix, and a retest to confirm it’s closed.

The platform

From the open internet
to a closed path

DISCOVER
PLAN
Exploit
Remediate
Retest
[1]

Discover

Start with one domain. Agents find related domains, subdomains, IPs, ports and services, with an ownership-confidence score and supporting evidence for each asset.

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[2]

Plan

Agents build an attack plan for each type of exposure, using leaked-credential intelligence and any pentest, bug bounty or ASM context you provide. You approve the plan before attacks run.

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[3]

Exploit

Agents attack web apps, APIs, VPN gateways, mail servers and other exposed services, chaining weaknesses into verified paths. Every reported path must reproduce, with its blast radius attached.

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[4]

Remediate

Every proven path arrives with a fix. Send it to your ticketing system or coding agent, or route it to your WAF, cloud security and SIEM tools.

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[5]

Retest

The agents retest the same path until it's confirmed closed. Each new test starts again from your domain, so a subsidiary, an acquisition or a system nobody registered gets found and attacked, and a fix that regresses gets caught.

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From a list of exposures
to closed paths.

today
Exposed assets ranked, with exploitability still to prove
New systems go live before anyone tests them
Known CVEs define what gets tested
with Ⓐ Security
Verified attack paths with evidence,
blast radius and a fix
Related assets discovered from your
domain and tested once you approve them
Agents test behavior and prove
flaws with no published CVE

Behind every attack

[01]

The Harness

100+ specialized agents, orchestrated through one engine that selects the right AI model and validates every result.

[02]

Knowledge Graph

Attack paths, business context, fixes, and retests build a persistent intelligence layer that integrates with your SIEM and SOAR.

[03]

Apex-Domain Discovery

Find related root domains, subsidiaries and acquisitions, with evidence linking discovered assets to your organization.

[04]

Exposure-Class Testing

Web apps, exposed storage, mail servers and VPN gateways each get attacks built for that type of system.

[05]

Promote to a Full Test

Take a discovered web application into a full Web Apps test with credentials, from the same inventory.

[06]

Unsafe Output

Test for XSS, injected links and data leakage through rendered model output. Proof is validated in a real browser.

Fixes become a part of work

Findings go to the tools your team already uses, with the fix attached. Nothing to install. Run it as SaaS or in your own cloud account on AWS, Azure or Google Cloud, on AI models you've approved.

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And many more

Attacks production without breaking it

01

Production-safe by default

Agents can’t write to your servers, leave anything behind, trigger purchases or emails, or knock a service offline.

02

Every lead reviewed first

Each exploitation task is checked against your safety policy before it runs.

03

An independent judge

Every action that changes state is intercepted and judged on its raw mechanics. No agent approves its own actions.

04

Shared memory

Every object created during a test is tracked across agents.

05

Hard scope limits

Anything outside your approved scope is blocked, whatever the agent decides.

06

Every intervention logged

Blocked actions can’t be retried with new wording, and every decision is logged for your auditors.

FAQ

Questions, answered

Straight answers on how continuous
validation works in your environment.

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demo
01
How does A Security test external infrastructure?
Starting from one domain, with nothing to install, offensive agents find the systems tied to your organization. Once you approve the scope, they exploit the vulnerabilities and attack chains an adversary could use, then drive each proven path through remediation and retest.
02
How is this different from external attack surface management?
A Security takes discovery through exploitation, remediation and retesting. It builds the inventory itself, subsidiaries included, then proves which exposures form usable attack paths. You can also feed in your existing ASM inventory as extra context.
03
What do the agents attack?
Within your approved scope: web applications and APIs, mail servers, file transfer and remote access services, VPN gateways, management consoles, exposed storage and the underlying infrastructure. Every path is proven from the outside in, the way an attacker would find it.
04
Is it safe to run against our live perimeter?
Yes. You approve scope before testing, and newly discovered assets wait for authorization. An independent judge checks every action that changes state, and nothing that could knock a service offline or destroy data is allowed to run. Every action is logged, with a kill switch available throughout.
05
Will it find subsidiaries and acquisitions we haven’t onboarded?
Yes. Apex-domain discovery finds related root domains, subsidiaries and acquisitions, and the systems behind them. Once you approve them, they’re tested with the rest of your perimeter.
06
Does it find vulnerabilities with no CVE?
Yes. Agents test how exposed systems behave and prove exploitation, including flaws that have no CVE yet.
07
How long until results?
Discovery runs in hours and validated findings arrive the same day for most perimeters, depending on size.
08
Does testing extend beyond web applications?
Yes. A Security tests mail servers, VPN gateways, file transfer services, management consoles and other approved infrastructure. Agents chain weaknesses into verified attack paths, then retest after fixes.
09
Can we run A Security in our own cloud, on our own models?
Yes. Bring your own cloud and bring your own model are generally available. The platform runs in your own cloud account on AWS, Azure or Google Cloud, and every AI call goes to a model you’ve approved. Findings, credentials and logs stay in your account and region.

See it. Prove it.
Close it.

Start with one domain. See the systems tied to your organization, the paths an attacker could use, and what it takes to close them.

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demo