CISO Tribune

Vendor comparison · 2 companies

Nucleus Security vs ZeroFox

Nucleus Security sells vulnerability and exposure management software for enterprise organizations and government agencies. 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 Threat intelligence. 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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  • Nucleus Security
  • ZeroFox
Nucleus Security vs ZeroFox: Products, Customers and Funding Compared
Nucleus SecurityNucleus Security sells vulnerability and exposure management software for enterprise organizations and government agencies.nucleussec.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
  • Nucleus Data Core[5]A system of record for assets, exposures, and threats.
  • Nucleus ServiceNow App connector[7]A connector that integrates with ServiceNow through the Nucleus Security for Vulnerability Response app.
  • 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: listed, seen November 10, 2026[12]
  • 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 8, 2026September 27, 2026

Where they overlap

  • Nucleus Security and ZeroFox are both filed under Threat intelligence.

Where they differ, field by field

  • Nucleus Security's primary category is Vulnerability management; ZeroFox's is Digital risk protection.
  • Nucleus Security is also filed under Exposure prioritisation and CTEM. ZeroFox is also filed under External attack surface management.
  • Nucleus Security lists Nucleus Data Core and Nucleus ServiceNow App connector. 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: Nucleus Security

What Nucleus Data Core does[5]
The Nucleus Data Core is a system of record for assets, exposures, and threats. The Nucleus Data Core transforms fragmented data into unified, live exposure context. Nucleus says every AI decision and action is grounded in the Nucleus Data Core.
What Nucleus ServiceNow App connector does[7]
The Nucleus ServiceNow App connector integrates directly with ServiceNow through the Nucleus Security for Vulnerability Response app. The app runs directly on a customer's ServiceNow environment and enables integration with Vulnerability Response. The app has several different integrations, including assets and vulnerable items.

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 Nucleus Security and ZeroFox

What do Nucleus Security and ZeroFox sell?
Nucleus Security sells Nucleus Data Core and Nucleus ServiceNow App connector. ZeroFox sells Cyber Threat Intelligence, Digital Risk Protection, HNTR Executive Protection, External Attack Surface Management, Mobile App Protection and 1 more.
Are Nucleus Security and ZeroFox in the same category?
They share Threat intelligence. Nucleus Security's primary category is Vulnerability management and ZeroFox's is Digital risk protection.
Who owns Nucleus Security and ZeroFox?
ZeroFox is owned by Haveli Investments, since 2024.
Who are Nucleus 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 Nucleus Security

Nucleus Security sells vulnerability and exposure management software for enterprise organizations and government agencies. Nucleus unifies exposure data, tracks what is being exploited in the wild, and uses AI to build the program. Nucleus says AI is accelerating how fast new vulnerabilities are found and exploited, and that traditional programs cannot keep pace.[1][3][4]

Nucleus Helix drives specialized AI models and agents that build and maintain the program and close exposure gaps. Nucleus Helix runs on the Nucleus Data Core. The Nucleus Data Core is a system of record for assets, exposures, and threats that transforms fragmented data into unified, live exposure context.[5]

Nucleus ingests, correlates, and normalizes data from all of a customer's tools into one hub for unified risk visibility and reporting. Nucleus centralizes exposure management and unifies data from asset discovery, vulnerability scanners, exposure validation, and threat intelligence. Nucleus lets customers customize risk scoring and prioritize risk with asset context and business impact. Nucleus Insights agentic intelligence feed validates exploit and malware evidence. Nucleus offers application security capabilities with unified visibility, exposure prioritization, and automated ownership assignment. Nucleus addresses dynamic cloud environments, including findings sprawl and ephemeral assets.[1][2][3][4]

Nucleus remediation workflows prioritize, ticket, assign owners, and track SLA performance. Nucleus operationalizes ownership metadata in the Nucleus Dynamic Automation Framework to adapt ownership assignment as the business evolves. Nucleus tracks the status of tickets with bi-directional integration and updates when new data is ingested or a status changes. Nucleus lets customers set time limits and document approvals for risk exceptions. Nucleus lets customers define SLAs and monitor ticket status and resolutions over time.[6]

The Nucleus ServiceNow App connector integrates directly with ServiceNow through the Nucleus Security for Vulnerability Response app. The Nucleus Security for Vulnerability Response app runs directly on a customer's ServiceNow environment and enables integration with Vulnerability Response. The Nucleus Security for Vulnerability Response ServiceNow app has several different integrations, including assets and vulnerable items. The app is intended to be installed and configured by a Nucleus Security for Vulnerability Response specialist alongside a ServiceNow administrator with experience with ServiceNow SecOps Vulnerability Response.[7]

CMMC 2.0 is the Department of War (formerly Department of Defense) framework for protecting Federal Contract Information (FCI) and Controlled Unclassified Information (CUI) across the Defense Industrial Base (DIB). Nucleus operationalizes and centralizes evidence, monitors weaknesses, prioritizes risk-based fixes, and proves outcomes across teams and systems for core security controls. Nucleus automatically turns critical findings into tracked incidents with owners, actions, and documented resolution. Nucleus maps findings to NIST 800-171 controls and generates and manages POA&Ms. Nucleus offers POAM automation for the POAM process from vulnerability identification to reporting, for federal agencies and contractors.[8][9]

Nucleus offers two license tiers for unified vulnerability management. Nucleus pricing is affected by the number and type of assets in a customer's environment. Nucleus defines an asset as anything that can have a finding, including physical devices, cloud services, code repositories, and applications. TRUESEC, a European MSSP, unified customer data, automated remediation workflows, and scaled its services in partnership with Nucleus. Nucleus experts researched every new KEV addition between October 2025 and March 2026 and captured their observations in a report. Nucleus Security has published new CVE research in a company white paper.[1][2][4][5][6][10][11]

Nucleus Security on the record

Sources

Nucleus Security full record

  1. [1]nucleussec.comNucleus Security · nucleussec.com · undated page, accessed November 8, 2026 · Tier A
  2. [2]PlatformNucleus Security · nucleussec.com · undated page, accessed November 8, 2026 · Tier A
  3. [3]Nucleus Vulnerability & Exposure Management SolutionsNucleus Security · undated page, accessed November 10, 2026 · Tier A
  4. [4]Nucleus Security | Vulnerability and Exposure ManagementNucleus Security · undated page, accessed November 10, 2026 · Tier A
  5. [5]Nucleus Vulnerability Management PlatformNucleus Security · undated page, accessed November 10, 2026 · Tier A
  6. [6]Vulnerability Remediation with NucleusNucleus Security · undated page, accessed November 10, 2026 · Tier A
  7. [7]ServiceNow App for Vulnerability ResponseNucleus Security · undated page, accessed November 10, 2026 · Tier A
  8. [8]Operationalize CMMC 2.0 Compliance with NucleusNucleus Security · undated page, accessed November 10, 2026 · Tier A
  9. [9]Get Started Nucleus POAMNucleus Security · undated page, accessed November 10, 2026 · Tier A
  10. [10]Nucleus PricingNucleus Security · undated page, accessed November 10, 2026 · Tier A
  11. [11]Risk-based Vulnerability Management | Nucleus SecurityNucleus Security · undated page, accessed November 10, 2026 · Tier A
  12. [12]Nucleus Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed November 10, 2026 · Tier C

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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