Attack Surface Management

See your attack surface
before they do.

V12 ASM maps every asset you expose to the internet — subdomains, services, ports, leaked credentials and vulnerabilities — and tells you exactly where you are at risk and what is exploitable.

Domain ownership verified. No agents to install.

1,200+
assets discovered per scan
13
security checks per host
8
discovery sources
SSE
real-time scan progress
Features

Everything you need to map and defend your perimeter

One platform that goes from discovery to prioritized, actionable risk.

Attack surface discovery

Subdomains, DNS records and forgotten assets from multiple sources — including the real origin IP behind Cloudflare/CDN.

Ports & services

Port scanning with service version detection and flagging of potentially dangerous ports.

Vulnerabilities

Nessus + Nuclei scanning with CVSS, VPR and CVE mapping, prioritized by real-world risk.

Patch verification

Confirm a vulnerability is fixed with a targeted re-scan of just that finding — in seconds, without re-running everything.

Real exploitability

We cross your CVEs with CISA KEV and EPSS for an exploitability index: what an attacker would hit first.

Per-domain risk scoring

Risk score and A–F grade per domain, computed on the current data of every module.

Change detection

See what changed across your surface and how it evolves over time: new assets, removed assets and exposures.

HTTP security

Per-host checks — CSP, HSTS, CORS, cookies, TLS — distilled into an A–F grade.

DNS / Email security

SPF, DMARC and DKIM validation plus subdomain takeover detection.

Credentials & dark web

Leaked credentials tied to your domains and mentions on ransomware leak sites, with masked, audited access.

War Room / live SOC

A full-screen view for the SOC monitor: risk, exploitable CVEs and activity in real time.

Multi-tenant & roles

Isolated organizations and roles (display, viewer, analyst, admin) with full audit logging.

How it works

From zero to full visibility in four steps

1

Create your account

Validate your identity and company in minutes.

2

Verify your domain

Prove ownership by adding a DNS TXT record. We check it automatically.

3

Run your first scan

We map your full attack surface and grade every exposure.

4

Prioritize the exploitable

We cross your findings with CISA KEV and EPSS and detect changes on your surface so you act first on what matters.

Live demo

See the console in action

A real look at the dashboards, scans and findings you get.

app.v12asm.io/surface
Assets
1,284
Critical
23
Coverage
98%
Open the interactive demo

Ready to see what attackers see?

Map your attack surface in minutes.

Get started