Attack-surface intelligence

Every company has an attack surface.
Most have never seen theirs.

Autonomous reconnaissance, evidence-calibrated triage, and investor-grade technical due diligence — self-hosted, zero cloud dependency. We map what's exposed before it matters.

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Self-hosted · no data leaves your network · built for VDD / TDD / CDD
0modules
Scan modules
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Intelligence sources
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Self-hosted · no vendor lock-in
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To investor-grade report
01 / DISCOVER

The full external footprint — automatically.

Domains, subdomains, hosts, ports, cloud providers, exposed services, email posture, leaked credentials. The map draws itself, then keeps updating as the surface shifts.

  • DNS & subdomain enumeration
  • Open port & service fingerprinting
  • Cloud infrastructure attribution
  • OSINT: SPF / DMARC / DKIM, GitHub leaks, job signals
h0sint · scan · acme-corp.com
❯ h0sint scan acme-corp.com
✓ DNS: 47 records discovered
✓ Subdomains: 23 hosts resolved
✓ Ports: 312 open across 18 IPs
⚡ Cloud: AWS us-east-1, Cloudflare
⚡ Emails: firstname.lastname@ pattern
✗ DMARC: none — spoofing possible
✗ S3 bucket: public read — acme-assets
✓ Scan complete · 4m 38s
❯
02 / ANALYZE

Signal, not noise.

Every finding is triaged against CVSS, EPSS exploit probability, and real-world evidence — not scanner defaults. False-positives are flagged once and never surface again.

  • EPSS-weighted severity (not just CVSS)
  • False-positive memory across scans
  • AI-assisted root-cause analysis
  • VDD / TDD / CDD report framing built in
Risk Scorecard · acme-corp.com
HIGH RISK
Attack Surface
78
Vulnerabilities
54
Exposure score
41
Patch maturity
31%
Email posture
NO DMARC
03 / REPORT

Investor-grade, in one click.

A complete VDD / TDD pack — narrative, risk verdicts, recommendations — in the house style of top diligence firms. Deck and PDF, ready to sign and attach.

  • Executive summary + risk narrative
  • Evidence-linked findings table
  • Remediation roadmap with effort estimates
  • PowerPoint + Markdown export
Intelligence summary · acme-corp.com
DNS
47 DNS records · 23 hosts
3 dangling CNAMEs → subdomain takeover risk
CRITICAL
CVE
14 vulnerabilities · 2 critical
CVE-2024-21887 · EPSS 0.94 (exploited in wild)
CRITICAL
TECH
Next.js 13.4.1 · end-of-life
No security patches since Nov 2023
MEDIUM
OSINT
GitHub: 3 secrets in commit history
AWS key rotated · Stripe key still live
HIGH
Built for
Who uses h0SINT
Security teams
Continuous attack surface monitoring
Track exposure drift between scans. Get alerted when new ports open, CVEs match your stack, or your email posture degrades. All on your own infrastructure.
VC & M&A advisors
Technical due diligence in hours, not weeks
A complete TDD pack with risk verdicts and remediation roadmaps — generated from live scan data, not questionnaires. Attach it to your IC memo.
Founders & CISOs
See your company the way an attacker does
A real-time mirror of your external attack surface. Know what's exposed, what's misconfigured, and what a buyer's security team will find before they find it.
"
The gap between what a company thinks is exposed and what an attacker can actually reach is where acquisitions fall apart.
h0SINT · design principle
Coming soon.
Founding access is limited and by invitation. Leave a work email — we'll reach out when your seat is ready.
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Self-hosted · your data never leaves your network
Get in touch
Talk to the person building it.
Questions, a pilot, a partnership, or just curious — drop a line. It reaches a real inbox at knowone@h0sint.com and I read every message.
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