Sigma InfoSec
Managed Attack Surface Monitoring

See your perimeter as attackers see it.

Cybercriminals continuously scan the internet for open ports, unpatched software, and unmanaged cloud servers. If an asset is visible on the public internet, it is an active target. Our managed EASM service harnesses Shodan's global internet-crawling network — combined with 24/7 SOC analyst triage — to deliver continuous visibility over your WAN IPs, domains, and cloud perimeters.

Continuous Shodan ingestionZero-noise SOC triageShadow IT discovery
PERIMETER.LIVELIVE
142
Public assets mapped
24/7
Crawler ingestion
RDP 3389 exposed — 45.33.x.xExposed
SSL cert expired — vpn.example.comExpired
CVE matched — edge firewall bannerFlagged
New subdomain — dev.example.comMapped
Perimeter drift caughtSOC validated

Every exposure validated before it reaches you

3389
The Exposed Perimeter

The vulnerabilities on your public perimeter

3389 the RDP port — one misconfiguration away from a ransomware entry point

Modern enterprise attack surfaces expand faster than security teams can track manually, creating dangerous exposure gaps.

SHADOW IT

Shadow IT & forgotten infrastructure

Temporary dev servers, legacy VPN endpoints, and staging environments left exposed to the internet without security oversight — assets your team doesn't know exist.

EXPOSED PORT

Exposed high-risk services

Unintentional public access to sensitive administrative ports — RDP (3389), SSH (22), SMB (445) — and unauthenticated databases like MongoDB or Elasticsearch.

ZERO-DAY

Unpatched public software

Public-facing web servers, firewalls, and gateways running outdated software versions containing known zero-day vulnerabilities.

CERT DRIFT

Expired or misconfigured SSL/TLS

Insecure cipher suites, self-signed certificates, or expired SSL encryption that compromise data in transit and trigger compliance failures.

The Service

Continuous eyes on everything you expose

We turn Shodan's global crawling infrastructure into a managed defense feedback loop — so every exposure is found, validated, and remediated before adversaries strike.

Complete perimeter visibility

Map every public WAN IP, domain, subdomain, and cloud endpoint tied to your enterprise — including forgotten assets your team didn't know existed.

Real-time change detection

Continuous banner-grabbing data detects newly opened ports, rogue web services, modified SSL certificates, and inadvertent firewall changes as they happen.

Instant CVE & vulnerability mapping

Public-facing software banners are cross-referenced against active CVE databases, pinpointing vulnerable software versions the moment new exploits break globally.

Zero-noise managed triage

We don't dump raw scan data on your desk. Our SOC validates findings, filters out noise, and delivers step-by-step remediation instructions to lock down exposed assets.

How It Works

From raw intelligence to active defense

We turn global threat intelligence into an automated defense feedback loop.

1

Continuous footprint ingestion

We configure continuous monitoring across your WAN IP blocks, primary domains, and subdomains using Shodan's global crawler network — cataloging every public asset and service banner.

2

Automated risk & change triaging

Our platform constantly analyzes service banners for unauthorized open ports (RDP, SSH, databases), newly exposed services, SSL/TLS certificate changes, and known vulnerabilities (CVEs).

3

Priority alerting & fast lockdown

When critical exposure is detected, our SOC validates the risk, eliminates false positives, and sends your team immediate, prioritized instructions to remediate the vulnerability.

Engine Room

Core intelligence capabilities

Continuous Shodan API ingestion and SOC triage — deep technical crawling features that safeguard your external footprint.

01

WAN IP & domain discovery

Automatically maps IP ranges, autonomous system numbers (ASNs), domains, and subdomains to maintain an accurate digital asset inventory.

02

Port & service tracking

Monitors standard and non-standard network ports to catch unauthorized remote access points and exposed management portals.

03

Deep banner grabbing

Inspects HTTP headers, SSH/FTP banners, and application metadata to identify exact software versions running on public interfaces.

04

CVE & zero-day indexing

Matches running software versions against the National Vulnerability Database (NVD) to spot zero-day risk before weaponized exploits circulate.

05

SSL/TLS & hostname inspection

Tracks certificate expiration dates, domain name changes, self-signed certificates, and weak encryption protocols across all web endpoints.

06

Immediate drift alerts

Triggers notifications the moment an unexpected change occurs on your perimeter, preventing configuration drift from becoming a breach vector.

The Difference

Raw scanning tools vs. managed EASM

Standard Automated Port Scanners
Fully Managed EASM (Powered by Shodan)
Discovery scope
Only checks IP addresses explicitly provided by internal IT teams
Shodan banner indexing discovers forgotten subdomains, cloud IPs, and Shadow IT
Monitoring frequency
Periodic (weekly or monthly) point-in-time vulnerability scans
Continuous monitoring catches unauthorized port openings and infrastructure changes as they happen
Vulnerability mapping
Basic port status reports requiring manual cross-referencing against CVEs
Real-time correlation of service banners against active CVE databases
Data quality & noise
Thousands of uncontextualized line items, causing severe alert fatigue
SOC-validated filtering: analysts deduplicate data, remove benign signals, and prioritize true perimeter risk
Remediation support
Static PDF report delivered with no operational follow-through
Actionable, step-by-step guidance from our SOC to isolate exposed assets and patch vulnerabilities
FAQ

Frequently Asked Questions

Get Started

Eliminate your digital perimeterblind spots.

Don't wait for threat actors to find your forgotten assets. Partner with our SOC to monitor and secure your external attack surface 24/7.

Talk to a Security Expert

Continuous monitoring · SOC-validated alerts · Step-by-step remediation