External Attack Surface Monitoring
See your organisation the way attackers do
Continuous visibility into your internet-facing footprint, finding exposed assets and weak points before they become entry points
Better external hygiene means fewer incidents to handle.
Your external footprint changes every day
New services, new subdomains, new vendors, old systems that never got retired. Attackers scan for those openings constantly. We give you continuous visibility into what the internet can see, identifying exposed assets, risky services, forgotten endpoints, and misconfigurations, then prioritising what is most exposed, easiest to exploit, and most damaging if compromised.
What you get
Continuous perimeter visibility
Ongoing discovery of domains, subdomains, exposed services, and endpoints.
Configuration risk signals and exposure checks across your internet-facing assets.
Not an endless list: what is most exposed, easiest to exploit, and most damaging.
Findings with evidence, severity, and recommended remediation, on a regular cadence.
How we work
From discovery to prioritised remediation
Discover
Map your internet-facing assets, including the ones you forgot.
Assess
Check for exposures, risky services, and misconfigurations.
Prioritise
Rank findings by exposure, exploitability, and impact.
Report
Deliver evidence and remediation guidance on a recurring cadence.
Who needs this
Fast-changing estates
Keep up with new services and subdomains as you grow.
- Continuous discovery
- Drift detection
Multi-vendor organizations
See exposure introduced by third parties and old systems.
- Forgotten-asset discovery
- Config risk signals
Monitoring clients
Reduce the incidents you ever have to handle.
- Perimeter visibility
- Prioritised fixes
Why Syndis
Know what the internet sees
What to know about attack surface monitoring
Scans are a snapshot. Monitoring is continuous, so you catch new exposures as your footprint changes, not months later.
Close exposures before they open
Tell us your asset boundaries. We come back with a monitoring scope.