CISO Tribune

Vendor comparison · 2 companies

Halo Security vs ZeroFox

Halo Security sells penetration testing and continuous visibility across an attack surface, bringing testing, discovery, and scanning together. ZeroFox sells a fused cybersecurity platform that brings intelligence, AI, and cybersecurity experts together in one continuous loop of discovery, validation, and disruption. CISO Tribune files both under External attack surface management and Digital risk protection. 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
  • ZeroFox
Halo Security vs ZeroFox: 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.comZeroFoxZeroFox sells a fused cybersecurity platform that brings intelligence, AI, and cybersecurity experts together in one continuous loop of discovery, validation, and disruption.zerofox.com
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.
  • Cyber Threat Intelligence[1][3][4]Finished intelligence built from Dark Ops, threat channel infiltration, asset fingerprinting, and analyst expertise.
  • Digital Risk Protection[1][2][4][5]Uses threat intelligence to safeguard brands, domains, and executives from threats outside the firewall.
  • HNTR Executive Protection[10]An executive protection solution aimed at impersonation, doxxing, and escalating physical threats.
  • External Attack Surface Management[2][14]Defines and maps an organization's internet-exposed attack surface, identifying known and unknown assets.
  • Mobile App Protection[14]Discovers fraudulent, rogue, or malicious mobile applications impersonating a brand or organization.
  • Credit Card Protection[14]Discovers leaked or stolen credit card numbers and PINs for a single Bank Identification Number.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Not stated on its pagesOwned by Haveli Investments since 2024[2][12]
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 10, 2026[12]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Not written yetFrom its own pages, the company sells mainly to security teams, and the CTI Search Portal page says it is built for them. Its social media offering is described as defending organizations on social platforms from impersonation, scams, fraud, and reputational attacks. Its executive offering is aimed at protecting executives from impersonation, doxxing, and escalating physical threats.
Last verified
November 12, 2026September 27, 2026

Where they overlap

  • Halo Security and ZeroFox are both filed under External attack surface management and Digital risk protection.

Where they differ, field by field

  • Halo Security's primary category is Penetration testing and red team services; ZeroFox's is Digital risk protection.
  • Halo Security is also filed under Vulnerability management. ZeroFox is also filed under Threat intelligence.
  • Halo Security lists Penetration Testing, Attack Surface Management and Application Scanning. ZeroFox lists Cyber Threat Intelligence, Digital Risk Protection, HNTR Executive Protection, External Attack Surface Management, Mobile App Protection and 1 more.
  • ZeroFox is owned by Haveli Investments, since 2024.

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: ZeroFox

What Cyber Threat Intelligence does[1][3][4]
ZeroFox fuses Dark Ops, threat channel infiltration, asset fingerprinting, and analyst expertise to deliver finished intelligence. ZeroFox tracks forums, markets, and chats for chatter, access sales, and stolen data. ZeroFox connects to TIP, SIEM, SOAR, and EDR for automated action.
What Digital Risk Protection does[1][2][4][5]
ZeroFox describes Digital Risk Protection as safeguarding external assets such as brands, domains, and executives across social media, marketplaces, and the surface, deep, and dark web. ZeroFox offers Brand, Domain, Executive, and Social Media Protection.
What HNTR Executive Protection does[10]
ZeroFox detects and removes fake profiles, hijacked accounts, and AI-generated video or audio built to impersonate or discredit executives. ZeroFox tracks dark web forums and marketplaces for exposed home addresses, family details, and leaked executive credentials.

Questions about Halo Security and ZeroFox

What do Halo Security and ZeroFox sell?
Halo Security sells Penetration Testing, Attack Surface Management and Application Scanning. ZeroFox sells Cyber Threat Intelligence, Digital Risk Protection, HNTR Executive Protection, External Attack Surface Management, Mobile App Protection and 1 more.
Are Halo Security and ZeroFox in the same category?
They share External attack surface management and Digital risk protection. Halo Security's primary category is Penetration testing and red team services and ZeroFox's is Digital risk protection.
Who owns Halo Security and ZeroFox?
ZeroFox is owned by Haveli Investments, since 2024.
Who are Halo Security and ZeroFox sold to?
From its own pages, the company sells mainly to security teams, and the CTI Search Portal page says it is built for them.

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

ZeroFox full record

  1. [1]PlatformZeroFox · zerofox.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]Haveli completes acquisition of zerofoxZeroFox · zerofox.com · published May 13, 2024 · Tier A
  3. [3]ZeroFox | External Cybersecurity.ZeroFox · undated page, accessed October 30, 2026 · Tier A
  4. [4]External Cybersecurity Platform | ZeroFoxZeroFox · undated page, accessed October 30, 2026 · Tier A
  5. [5]ZeroFox Digital Risk ProtectionZeroFox · undated page, accessed October 30, 2026 · Tier A
  6. [6]Takedowns | ZeroFoxZeroFox · undated page, accessed October 30, 2026 · Tier A
  7. [7]ZeroFox Intelligence Search | ZeroFoxZeroFox · undated page, accessed October 30, 2026 · Tier A
  8. [8]Compromised Credential Monitoring: Identify credentials leaked onlineZeroFox · undated page, accessed October 30, 2026 · Tier A
  9. [9]Physical Security Intelligence (PSI) Software | ZeroFoxZeroFox · undated page, accessed October 30, 2026 · Tier A
  10. [10]Cybersecurity Solutions for Executive Protection | ZerofoxZeroFox · undated page, accessed October 30, 2026 · Tier A
  11. [11]Social Media Security Protection Software | ZeroFoxZeroFox · undated page, accessed October 30, 2026 · Tier A
  12. [12]ZeroFox Reviews 2026: Details, Pricing, & Features - G2G2 · undated page, accessed October 30, 2026 · Tier C
  13. [13]PII Protect & Removal | ZeroFoxZeroFox · undated page, accessed November 10, 2026 · Tier A
  14. [14]Pricing | ZeroFoxZeroFox · undated page, accessed November 10, 2026 · Tier A
  15. [15]ZeroFox Master Customer Agreement | ZeroFoxZeroFox · published December 16, 2025 · Tier A

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