Attack Surface Management (ASM) is the continuous discovery, inventory, and monitoring of an organization's internet-facing assets - domains, subdomains, IPs, ports, certificates, cloud services, and exposed applications - so that unknown or unmanaged exposures are found before attackers exploit them. CyberXplore runs ASM as a senior-led service that fuses automated external reconnaissance with manual analyst validation, surfacing shadow IT, expiring certificates, and risky open ports as prioritized, low-noise alerts rather than an unfiltered scanner dump.
NIST CSFOWASPMITRE ATT&CKCIS Controls
Why CyberXplore
Senior-only testers (OSCP, CRTP, CREST)
ISO 27001 & ISO 9001 certified
Free retest + attestation letter
Tailored scope and quote in 24 hours
Why it matters
You cannot defend what you do not know you own - most breaches start at a forgotten subdomain, an exposed admin panel, or a cloud asset spun up outside IT's visibility.
Your external footprint changes daily as teams deploy services, register domains, and adopt SaaS; a once-a-year pentest is a snapshot, while attackers scan the internet continuously.
Shadow IT, abandoned staging environments, and dangling DNS records are prime targets for subdomain takeover, credential leakage, and lateral entry into your core network.
Expiring or misissued TLS certificates and unexpected open ports cause both outages and exposure - early, prioritized alerting prevents incidents before they happen.
Aligned with industry standards: NIST CSF · OWASP · MITRE ATT&CK · CIS Controls
Our methodology
01
Seed & Footprinting
We start from known domains, brands, ASNs, and IP ranges, then expand outward through WHOIS, DNS, and registration data to establish the true boundary of your organization's external estate.
02
Continuous Asset Discovery
Automated discovery enumerates subdomains, hosts, IPs, and cloud services using passive and active techniques - certificate transparency logs, DNS brute-forcing, reverse DNS, and third-party intelligence sources.
03
Exposure Fingerprinting
Every live asset is profiled for open ports, running services, technologies, TLS certificate health, exposed login and admin interfaces, and tell-tale signs of shadow IT or misconfiguration.
04
Analyst Validation & Risk Scoring
Senior testers manually triage discoveries to eliminate false positives, confirm true ownership, and rank each exposure by exploitability and business impact - not just raw scanner severity.
05
Prioritized Alerting
Material changes - a new exposed service, a takeover-prone subdomain, an expiring certificate - are delivered as concise, actionable alerts so your team fixes what matters first instead of drowning in noise.
06
Ongoing Monitoring & Reporting
Your attack surface is re-scanned on a recurring cadence, with a living asset inventory and trend reporting that shows how your exposure evolves over time.
Shadow IT and unmanaged / forgotten asset identification
Subdomain enumeration and dangling-DNS / takeover risk detection
Certificate transparency monitoring and TLS certificate health
Open port and exposed service discovery
Technology and software version fingerprinting
Cloud and SaaS footprint exposure (storage buckets, login portals, APIs)
Exposed administrative, VPN, and remote-access interfaces
Misconfiguration and default-service exposure indicators
Change detection and continuous exposure monitoring
What you get
Continuously updated inventory of internet-facing assets
Prioritized exposure findings with risk ratings and business context
Real-time or scheduled alerts for new and changed exposures
Subdomain takeover and dangling-DNS risk register
Certificate and open-port exposure dashboards
Periodic trend reports showing attack-surface posture over time
Remediation guidance and analyst support for confirmed exposures
Sample deliverable
What you'll see in your report
Every engagement ends with a clear, prioritized report: severity-rated findings with CVSS scores, affected assets, and remediation status - plus a free retest. The figures below are illustrative.
Cumulative figures across our team's combined engagement history
Shared under NDA · details anonymized
“We scaled from one assessment a year to continuous testing without adding headcount. Findings land in our backlog with reproduction steps our developers can act on the same day.”
0 criticals at retest
DE
Director of Platform Engineering
Global e-commerce retailer · 1B+ requests / month
Retail / eComm
Certifications held by our testers
OSCP
CRTP
CREST
CEH
eWPTX
ISO 27001
ISO 9001
Frequently asked questions
A penetration test is a deep, point-in-time assessment of an agreed scope. ASM is continuous and breadth-first: it keeps discovering and monitoring everything you expose to the internet - including assets you didn't know existed - so it complements, rather than replaces, periodic pentesting.
