Surveiller — External Attack Surface & Leaked Credential Monitoring
Continuous discovery of exposed assets, leaked employee credentials and brand abuse across the clear, deep and dark web — with risk-scored alerts routed into your existing stack.
Executive Overview
What Surveiller Monitors
Attackers do not start with your firewall — they start with what is already exposed: forgotten subdomains, shadow IT, unpatched services, leaked credentials from infostealer logs, and lookalike domains registered against your brand. Surveiller continuously maps that external footprint and flags what an adversary could reach before they reach it.
Surveiller is Penough's threat-intelligence platform. Findings are risk-scored, deduplicated and delivered as a live feed, with alerts routable into your SIEM or webhooks so the intelligence lands where your team already works.
Capabilities
Core Features & Arsenal
Asset & Subdomain Discovery
Real-time discovery of public attack surfaces, shadow IT and unauthorised perimeter expansion your inventory does not know about.
Dark & Deep Web Intelligence
Identification of exposed assets and hidden threats across cleared and dark nets, including leaked credential databases and stealer logs.
Continuous Vulnerability Discovery
Ongoing assessment of the discovered surface with contextual risk prioritisation, not an undifferentiated scanner dump.
AI Risk Scoring
A heuristic engine that predicts exploit likelihood from historical data, so the queue is ordered by real risk.
Brand Abuse Monitoring
Lookalike domains, spoofed infrastructure and brand references that precede phishing campaigns against your customers.
SIEM & Webhook Delivery
Risk-scored alerts route into the stack you already run — SIEM, ticketing or webhooks — instead of yet another console to check.
Execution
Engagement Methodology
Why It Matters
Business Value Delivered
Every engagement is aligned to your strategic objectives — delivering measurable risk reduction and clear ROI for your organisation.
- See the external footprint attackers see, including assets your inventory missed.
- Detect leaked credentials before they are used for initial access.
- Prioritise by exploit likelihood instead of raw scanner volume.
- Feed external exposure into the same SIEM and SOC your team already operates.
Questions Answered
Frequently Asked Questions
What security teams ask before they put their external footprint under continuous monitoring.
What is external attack surface management (EASM)?
EASM is the continuous discovery, classification and risk-scoring of everything an attacker can reach from the internet — domains, subdomains, IP ranges, exposed services, cloud storage, certificates and leaked credentials. It exists because an organisation's real footprint is usually larger than its inventory, and attackers enumerate the difference.
Can Surveiller detect leaked employee credentials on the dark web?
Yes. Surveiller indexes leaked credential databases and stealer-log sources and matches findings against your domains, so credentials tied to your corporate email or applications surface as risk-scored alerts rather than appearing in a breach notification months later.
How is Surveiller different from a vulnerability scanner?
A scanner tests hosts you already know about. Surveiller first discovers the hosts you do not know about — shadow IT, abandoned subdomains, cloud buckets, lookalike domains — and then assesses that discovered surface, adding dark-web and credential exposure that a network scanner never sees.
Does Surveiller require agents on our systems?
No. Surveiller works from the outside in, using external discovery and public/deep/dark web sources, so there is nothing to install on endpoints or servers and no internal access is required to begin monitoring.
How do findings reach our security team?
Findings appear in a live, risk-scored feed and can be routed into your SIEM, ticketing system or webhooks, so exposure data joins the same workflow as your other detections instead of sitting in a separate console.
Is Surveiller a Penough product or a third-party tool?
Surveiller is Penough's own threat-intelligence and attack-surface platform, operated by our team and available to clients alongside managed SOC, VAPT and incident response engagements.