CISO Tribune

Vendor comparison · 2 companies

Halo Security vs Intruder

Halo Security sells penetration testing and continuous visibility across an attack surface, bringing testing, discovery, and scanning together. Intruder sells a single platform for continuous scanning across infrastructure, apps and cloud environments. CISO Tribune files both under Penetration testing and red team services, External attack surface management and Vulnerability management. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • Halo Security
  • Intruder
Halo Security vs Intruder: Products, Customers and Funding Compared
Halo SecurityHalo Security sells penetration testing and continuous visibility across an attack surface, bringing testing, discovery, and scanning together.halosecurity.comIntruderIntruder sells a single platform for continuous scanning across infrastructure, apps and cloud environments.intruder.io
What it sells
  • Penetration Testing[1][2][3][11]Halo Security tests web and mobile applications, APIs, external and internal networks, and wireless environments.
  • Attack Surface Management[1][2]Helps organizations discover and monitor the assets they expose to the internet.
  • Application Scanning[5]Scans web applications for vulnerabilities such as SQL injection and cross-site scripting.
  • Attack Surface Management[1][8]Finds assets outside an inventory and shows monitored ports and services.
  • Application Security[3]Continuous dynamic application security testing for web apps and single-page apps.
  • Cloud Security[1][3][9]Agentless scanning across AWS, Azure and Google Cloud.
Categories
Headquarters
Not stated on its pagesLondon, United Kingdom[2]
Founded
Not stated on its pages2015[2][4]
Ownership and funding
Not stated on its pagesNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pagesNot stated on its pages
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 12, 2026[13]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Not written yetNot written yet
Last verified
November 12, 2026November 12, 2026

Where they overlap

  • Halo Security and Intruder are both filed under Penetration testing and red team services, External attack surface management and Vulnerability management.

Where they differ, field by field

  • Halo Security's primary category is Penetration testing and red team services; Intruder's is Vulnerability management.
  • Halo Security is also filed under Digital risk protection. Intruder is also filed under Cloud security posture management.
  • Halo Security lists Penetration Testing, Attack Surface Management and Application Scanning. Intruder lists Attack Surface Management, Application Security and Cloud Security.
  • Intruder is headquartered in London, United Kingdom.
  • Intruder was founded in 2015.

What it sells: Halo Security

What Penetration Testing does[1][2][3][11]
Halo Security's penetration testing service combines manual investigation with tools whose results are validated by testers. Halo Security tests web and mobile applications, APIs, external and internal networks, and wireless environments. Halo Security offers social engineering and red teaming. An included round of retesting lets customers verify their remediation work.
What Attack Surface Management does[1][2]
Attack surface management covers internet-exposed assets, including websites, APIs, servers, and cloud services. Halo Security continuously checks those assets for vulnerabilities and changes. Halo Security finds and inventories internet-facing assets, including unknown and forgotten websites, IPs, services, and applications.

What it sells: Intruder

What Attack Surface Management does[1][8]
It connects to AWS, Azure, Google Cloud, and Cloudflare accounts and takes any domains and IPs. The attack surface view shows every monitored port, the service running on it, and the version behind it.
What Application Security does[3]
Application Security provides continuous dynamic application security testing (DAST) for web apps, single-page apps and underlying infrastructure, including authenticated scanning behind login pages. A ZAP-powered scanner runs over 75 application checks and integrates with CI/CD pipelines through GitHub, GitLab, Jira and Azure DevOps.
What Cloud Security does[1][3][9]
Cloud Security runs agentless scanning across AWS, Azure and Google Cloud for misconfigurations, insecure permissions, exposed secrets and critical vulnerabilities. CSPM checks run daily and trigger when the environment changes. Intruder scans container images at the registry level.

Questions about Halo Security and Intruder

What do Halo Security and Intruder sell?
Halo Security sells Penetration Testing, Attack Surface Management and Application Scanning. Intruder sells Attack Surface Management, Application Security and Cloud Security.
Are Halo Security and Intruder in the same category?
They share Penetration testing and red team services, External attack surface management and Vulnerability management. Halo Security's primary category is Penetration testing and red team services and Intruder's is Vulnerability management.
Where are Halo Security and Intruder headquartered?
Intruder is headquartered in London, United Kingdom.
When were Halo Security and Intruder founded?
Intruder was founded in 2015.

About Halo Security

Halo Security sells penetration testing and continuous visibility across an attack surface, bringing testing, discovery, and scanning together. Halo Security tests web and mobile applications, APIs, external and internal networks, and wireless environments. Halo Security offers social engineering and red teaming. Halo Security's penetration testing service combines manual investigation with tools whose results are validated by testers.[1][2][3]

Halo Security's ethical hackers explore how an attacker could get in, what they could reach, and how to close the gap. Customers work directly with US-based experts at Halo Security. Halo Security includes one round of retesting so customers can verify their remediation work. Halo Security provides reports and attestation letters that give a customer's team, auditor, and prospects evidence of its security. Halo Security reports support SOC 2, HIPAA, PCI, and other compliance needs.[1][2]

Attack surface management helps organizations discover and monitor the assets they expose to the internet, including websites, APIs, servers, and cloud services. Halo Security continuously checks those internet-exposed assets for vulnerabilities and changes. Halo Security finds and inventories internet-facing assets, including unknown and forgotten websites, IPs, services, and applications. Halo Security identifies open ports and internet-facing services so customers can monitor changes. Halo Security tracks certificates, security headers, third-party scripts, and other security controls across websites. Halo Security detects known vulnerabilities, missing security patches, and outdated software across external servers. Halo Security scans web applications for vulnerabilities such as SQL injection and cross-site scripting. Halo Security monitors for leaked employee credentials, exposed data, and mentions of an organization on the dark web. Halo Security can identify issues like subdomain takeovers, domains for sale, forgotten projects, and misconfigured cloud services. Halo Security risk scores show the external security posture of different teams and business units.[1][2][4][5][11]

Halo Security is a PCI Security Standards Council Approved Scanning Vendor, and its certificate number is 5078-01-11. Halo Security customers can set scans to run daily, weekly, monthly, quarterly, or on-demand. Customers with multiple business units can generate separate reports in the Halo Security portal. Halo Security scans look at an organization from the outside, with nothing to install and nothing to configure.[6][7]

Halo Security connects to AWS to import assets from Route53, ElasticIP, and Elastic Load Balancer. Halo Security creates and tracks security issues in Jira, and it streams security events and findings into Splunk. Halo Security syncs security findings with Vanta for compliance monitoring and reporting, and it sends real-time security alerts to a Slack workspace. Brinqa ingests external attack surface findings directly from the Halo Security platform. Halo Security also runs a Security Review, offered quarterly or semi-annually, in which its team works with customers to identify gaps in their coverage.[8][9][10]

The Halo Security platform helps organizations of all sizes achieve PCI compliance. In 2013, the operation was spun out to form PathDefender, which was shortly thereafter rebranded as TrustedSite. In 2022, the TrustedSite Security services were rebranded as Halo Security, and the TrustedSite brand remains for certification and marketing solutions. Halo Security has a team of over 30 people. Halo Security was originally based in San Francisco and now offers fully remote working opportunities.[1][5][6][7][10][11]

Halo Security on the record

Sources

Halo Security full record

  1. [1]halosecurity.comHalo Security · halosecurity.com · undated page, accessed November 12, 2026 · Tier A
  2. [2]Trusted, US-Based Penetration Testing | Halo SecurityHalo Security · undated page, accessed November 12, 2026 · Tier A
  3. [3]12 Questions to Ask a Pentesting Company | Halo SecurityHalo Security · undated page, accessed November 12, 2026 · Tier A
  4. [4]Attack Surface Management Features | Halo SecurityHalo Security · undated page, accessed November 12, 2026 · Tier A
  5. [5]Assess security program effectiveness | Halo SecurityHalo Security · undated page, accessed November 12, 2026 · Tier A
  6. [6]Achieve PCI Compliance | Halo SecurityHalo Security · undated page, accessed November 12, 2026 · Tier A
  7. [7]PCI Compliance Scanning from an ASV | Halo SecurityHalo Security · undated page, accessed November 12, 2026 · Tier A
  8. [8]Integrations | Halo SecurityHalo Security · undated page, accessed November 12, 2026 · Tier A
  9. [9]Halo Security + Brinqa: EASM Meets CTEMHalo Security · undated page, accessed November 12, 2026 · Tier A
  10. [10]Security Review | Halo SecurityHalo Security · undated page, accessed November 12, 2026 · Tier A
  11. [11]Customers | Halo SecurityHalo Security · undated page, accessed November 12, 2026 · Tier A
  12. [12]About Us | Halo SecurityHalo Security · undated page, accessed November 12, 2026 · Tier A

Intruder full record

  1. [1]intruder.ioIntruder · intruder.io · undated page, accessed November 12, 2026 · Tier A
  2. [2]CareersIntruder · intruder.io · undated page, accessed November 12, 2026 · Tier A
  3. [3]Intruder | Stop Breaches Before They StartIntruder · undated page, accessed November 12, 2026 · Tier A
  4. [4]Intruder About Us | Providing Effortless Cyber SecurityIntruder · undated page, accessed November 12, 2026 · Tier A
  5. [5]Intruder Security | How We Keep Your Data SecureIntruder · undated page, accessed November 12, 2026 · Tier A
  6. [6]Solution TemplateIntruder · undated page, accessed November 12, 2026 · Tier A
  7. [7]Intruder Pricing | Plans & Bolt-onsIntruder · undated page, accessed November 12, 2026 · Tier A
  8. [8]Attack Surface Management for Shadow IT and Exposures | IntruderIntruder · undated page, accessed November 12, 2026 · Tier A
  9. [9]Cloud Security for AWS, Azure and Google Cloud in One View | IntruderIntruder · undated page, accessed November 12, 2026 · Tier A
  10. [10]AI Pentesting: On-Demand Web App Pentests in Hours | IntruderIntruder · undated page, accessed November 12, 2026 · Tier A
  11. [11]Integrations | Jira, Slack, Vanta, AWS & MoreIntruder · undated page, accessed November 12, 2026 · Tier A
  12. [12]Customer Success Stories | IntruderIntruder · undated page, accessed November 12, 2026 · Tier A
  13. [13]Intruder Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed November 12, 2026 · Tier C

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