External Attack Surface Management
See your perimeter the way attackers do — and shrink it before they exploit it.
Why teams choose this
Full perimeter view
Every domain, subdomain, IP, port and service — discovered and inventoried.
Misconfiguration alerts
Catch exposed admin panels, debug endpoints and forgotten staging environments.
CVE tracking
Match exposed software versions against the live CVE database — automatically.
Drift detection
Get alerted the moment a new asset appears or an old one changes posture.
What's included
- Continuous subdomain & asset discovery
- Open port and service inventory
- TLS / DNS / WAF / header analysis
- Exposed credential & token monitoring
- Integration with ITSM and ticketing systems
How it works
- 01Connect
Add your domain or vendor list — no agents, no DNS changes. attack-surface discovery starts within minutes.
- 02Analyze
Our engine continuously ingests open-source intelligence, scan data and threat feeds to produce an objective risk score.
- 03Act
Receive prioritized remediations, alerts and exportable evidence — share with your team, board or auditors.
External Attack Surface Management — frequently asked questions
- How is this different from a port scanner?
- We continuously discover assets (not just scan known ones), correlate them with CVEs and ratings, and alert on changes — not just produce a one-off report.
- Will scanning affect production systems?
- No. All scans are passive and rate-limited — the same traffic a search engine crawler produces.
- Can I scope by business unit?
- Yes. Tag assets by BU, region or product, and route alerts to the right team.
- What is EASM (External Attack Surface Management)?
- EASM is the continuous discovery, inventory and monitoring of every internet-facing asset an organization owns — domains, subdomains, IPs, ports, services and exposed data. Gartner classifies it as a foundational security category.
- How is EASM different from vulnerability scanning?
- Vulnerability scanners test a known list of assets. EASM first finds the assets — including forgotten subdomains, staging environments and shadow IT — then continuously monitors them for new exposures.
- Does the scan trigger WAF or IDS alerts?
- Rarely. Scans are passive, rate-limited and use traffic patterns indistinguishable from common search-engine crawlers. We publish scanner IPs so you can allow-list them if desired.
Related capabilities
Ready to see External Attack Surface Management in action?
Talk to our team about a 30-minute walkthrough tailored to your environment, or run a free non-intrusive scan of any domain.