Halo Security Reviews, Ratings & Features 2026 | Gartner Peer Insights

External Attack Surface Management (EASM) market refers to solutions that continuously discover, inventory, and monitor an organization’s internet‑facing digital assets from an attacker’s perspective. These platforms identify unknown or unmanaged assets, exposed services, misconfigurations, and vulnerabilities across cloud, SaaS, on‑premises, and third‑party environments. EASM solutions contextualize external exposures with risk scoring, threat intelligence, and business relevance to help organizations prioritize remediation efforts. The market exists to help cybersecurity teams proactively reduce exposure by maintaining visibility of their internet-facing assets.

Who are the target users of External Attack Surface Management (EASM) Software?

Typical users include cybersecurity teams, vulnerability management professionals, risk managers, and IT security leaders in organizations of all sizes.
EASM solutions are especially valuable for enterprises with complex, distributed environments, frequent cloud adoption, or multiple subsidiaries and third-party relationships.
Executives responsible for organizational risk and compliance also benefit from the enhanced visibility and reporting capabilities these platforms provide.

What are the core capabilities of External Attack Surface Management (EASM) Software?

Asset Discovery and Inventory:
Identification of internet‑facing infrastructure (e.g., domains, subdomains, IPs, cloud assets, SaaS, APIs, certificates, shadow IT)
Asset Attribution & Ownership Mapping
Technology Fingerprinting (e.g., frameworks, CMS, web servers, open‑source components)
Third‑Party and Subsidiary Mapping
Continuous Monitoring & Change Detection:
Change Detection (new services, DNS changes, IP reassignments, open ports)
Asset Lifecycle Tracking (new, modified, decommissioned assets)
Certificate Monitoring (expiration, weak cryptography, unauthorized issuance)
Exposure & Vulnerability Identification:
Open Port and Service Enumeration
Configuration and Security Misconfiguration Detection
Known Vulnerability Mapping (CVE/CWE)
Insecure Protocol and Cipher Detection
Unprotected Cloud Storage & APIs
Expired or Weak Certificates
Exposed Secrets (tokens, API keys)
Risk Prioritization & Contextual Analysis
Risk Scoring (asset‑level and organization‑level)
Business Context Mapping (e.g., production vs dev, internet‑facing criticality)
Exploitability Context
Attack Path Visualization
Integration with Threat Intelligence Feeds
Attacker‑View Asset Mapping
Known Attacker Techniques mapping (MITRE ATT&CK alignment)
Remediation & Workflow Enablement
Remediation Guidance (e.g., automated attack surface reduction suggestions)
Integration with Ticketing Systems (e.g., ServiceNow, Jira)
Security Tool Integrations (e.g., SIEM, SOAR, vulnerability scanners)
Ownership Assignment & SLA Tracking
Evidence and Verification of Fixes
Reporting & Visualization
Executive Dashboards
Technical Analyst Views
Asset and Risk Heatmaps
Exposure Trends Over Time
Custom Report Builder

What are the benefits of External Attack Surface Management (EASM) Software?

EASM software helps organizations proactively reduce their cyber risk by maintaining comprehensive visibility of all internet-facing assets and exposures.
Security teams benefit from automated discovery, prioritized remediation, and streamlined workflows, enabling faster and more effective risk reduction.
Executives and risk leaders gain confidence through real-time dashboards, trend analysis, and clear evidence of remediation, supporting stronger governance, compliance, and organizational resilience against external threats.

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Find the top External Attack Surface Management Software with Gartner. Compare and filter by verified product reviews and choose the software that’s right for your organization.

External Attack Surface Management

Halo Security

IT Security & Risk Management Associate

The product worked well for us, even better than another competitor we are trying on our infrastructure. 

<50M USD

50M - 250M USD

1B - 3B USD

500M - 1B USD

250M - 500M USD

30B + USD

3B - 10B USD

Gov't/PS/ED <5,000 Employees

10B - 30B USD

IT Security Analyst

When I run a scan, I find vulnerabilities that are not easy to understand, the details are not documented enough. Also, the fact that I doesn't keep the history of the detected vulnerability is a problem for me. If a vulnerability is not treated, it should appear on the next scan. 

Lead Cyber Security

Interactive user interface has strong workflow logic, easy SLA setup and is a very collaborative tool. The AI capability saves a lot of time while creating new tickets and also provides solutions to existing problems which have been addressed before.

CrowdStrike

Microsoft

Palo Alto Networks

Other...

Google (Mandiant)

NetSPI

CloudSEK

Censys

BreachLock

Check Point Software Technologies (Cyberint)

Check Point Software Technologies

WithSecure

IONIX

CyberSecOp

ThreatMon

Searchlight Cyber (Assetnote)

Cloudflare

Tenable

LevelBlue

Red Sift

Cyble

Orpheus Cyber

StrikeOne

Cyberthint

Cisco Systems

Sophos

Acronis

Symantec (Appthority)

Halo Security is an external attack surface management platform, offering asset discovery, risk and vulnerability assessment, and manual penetration testing services in a unified dashboard. Led by experienced penetration testers and veterans of the cybersecurity industry, Halo Security is dedicated to bringing the attacker’s perspective to the modern organization. 

Halo Security offers organizations a comprehensive platform to improve their external security posture from the attacker's perspective. Formerly the TrustedSite Security services, the Halo Security team provides attack surface management, penetration testing, and vulnerability scanning solutions to thousands of customers.

Reviews

Ratings Overview

Overall experience with

Favorable Review

Collaborative Interface Offers Strong Workflow and Efficient AI-Powered Ticket Management

Critical Review

Untreated Vulnerabilities Not Tracked Across Scans Causes Difficulty in Management

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