CISO Tribune

Vendor comparison · 2 companies

Defendify vs Nucleus Security

Defendify sells a cybersecurity platform designed for IT teams. Nucleus Security sells vulnerability and exposure management software for enterprise organizations and government agencies. CISO Tribune files both under 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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  • Defendify
  • Nucleus Security
Defendify vs Nucleus Security: Products, Customers and Funding Compared
DefendifyDefendify sells a cybersecurity platform designed for IT teams.defendify.comNucleus SecurityNucleus Security sells vulnerability and exposure management software for enterprise organizations and government agencies.nucleussec.com
What it sells
  • Phishing Simulations[1][5]Ongoing, automated, unannounced phishing email campaigns that test a team's reflexes.
  • Cybersecurity Service Warranty[1]Up to $1,000,000 in financial assistance for qualified cyber events.
  • 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.
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 pagesNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • August 11, 2026Defendify was named to the Inc. 5000 list of America's fastest-growing private companies for the third consecutive year.[12]
Not 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
Defendify states that it makes stronger cybersecurity possible for all organizations. Its partner program is designed for MSPs, MSSPs, VARs, GRC, security integrators, systems contractors, consultants, and industry associations and organizations. Defendify is a software as a service product, and discounts may be available for certain groups, such as non-profit organizations and associations. Defendify states that some customers continue to use products from other providers while some aim to streamline vendors and transition more fully to Defendify.Not written yet
Last verified
November 11, 2026November 8, 2026

Where they overlap

  • Defendify and Nucleus Security are both filed under Vulnerability management.

Where they differ, field by field

  • Defendify's primary category is Managed security service providers; Nucleus Security's is Vulnerability management.
  • Defendify is also filed under Security awareness training and MDR and managed SOC. Nucleus Security is also filed under Exposure prioritisation and CTEM and Threat intelligence.
  • Defendify lists Phishing Simulations and Cybersecurity Service Warranty. Nucleus Security lists Nucleus Data Core and Nucleus ServiceNow App connector.

What it sells: Defendify

What Phishing Simulations does[1][5]
Defendify runs ongoing, automated, unannounced phishing email campaigns to test teams' reflexes. Those who take the bait are spot trained at the point of failure, and regular reporting helps to gauge retention and monitor training performance.
What Cybersecurity Service Warranty does[1]
The Defendify Cybersecurity Service Warranty provides up to $1,000,000 in financial assistance for qualified cyber events. The Defendify Cybersecurity Service Warranty is subject to terms and qualifying customers.

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.

Questions about Defendify and Nucleus Security

What do Defendify and Nucleus Security sell?
Defendify sells Phishing Simulations and Cybersecurity Service Warranty. Nucleus Security sells Nucleus Data Core and Nucleus ServiceNow App connector.
Are Defendify and Nucleus Security in the same category?
They share Vulnerability management. Defendify's primary category is Managed security service providers and Nucleus Security's is Vulnerability management.
Who are Defendify and Nucleus Security sold to?
Defendify states that it makes stronger cybersecurity possible for all organizations.
What have Defendify and Nucleus Security announced recently?
August 11, 2026: Defendify was named to the Inc. 5000 list of America's fastest-growing private companies for the third consecutive year.

About Defendify

Defendify sells a cybersecurity platform designed for IT teams. The Defendify layered cybersecurity solution covers people, process, and technology with 3 layers of protection and 13 modules in 1 platform. Defendify sells an All-In-One Cybersecurity® package with 13 modules across three layers of security.[1][2][3][4][5]

Defendify offers a solution for active monitoring, detection, containment, and response to cybersecurity threats and incidents. Defendify offers a solution for setting clear expectations and delivering ongoing cybersecurity education. Defendify offers a solution for identifying and addressing vulnerabilities across people, process, and technology. Defendify sells a package for 24/7 active monitoring and response, plus containment, by cybersecurity experts.[2][5]

On the detection and response side, Defendify provides managed security operations for active cybersecurity monitoring, detection, containment, and response. Defendify uses cybersecurity experts to identify suspicious activity and respond in real-time to contain attacks. Defendify provides a way to define and know roles, responsibilities, and next steps in the case of a cyberattack, breach, or incident. Defendify sends curated email alerts and notifications about critical vulnerabilities, important software patches, recent security incidents, and new and evolving attack methods.[1][4][6]

On the policies and training side, Defendify runs ongoing, automated, unannounced phishing email campaigns to test teams' reflexes, and spot trains those who take the bait at the point of failure. Defendify lets organizations customize that policy according to their legal, insurance, and compliance objectives. Defendify provides classroom-style cybersecurity video content covering cybersecurity fundamentals for current and new team members. Defendify provides cybersecurity microlearning videos and quizzes. Defendify has a library of graphics to promote cybersecurity awareness in physical and digital workspaces.[1][3][7]

On the assessments and testing side, Defendify provides a way to assess cyber strengths, weaknesses, and opportunities for improvement. Defendify runs simulated cyberattacks to uncover and prioritize network and security weaknesses for remediation. Defendify scans automatically to identify and prioritize vulnerabilities in an organization's network and systems. Defendify notifies teams when passwords for team members have been stolen and found listed in the dark web. Defendify runs automated website scanning to monitor website issues, vulnerabilities, and risks. The Defendify Cybersecurity Service Warranty provides up to $1,000,000 in financial assistance for qualified cyber events, and it is subject to terms and qualifying customers.[4][5][9]

Defendify is a software as a service (SaaS) product. Defendify pricing is based on the number of Defendify modules purchased, along with the number of associated assets to be protected. Defendify will customize a package to meet a customer's needs and budget. Defendify provides every customer a dedicated Customer Success Manager, initially to assist with onboarding and activation. Defendify's Success Manager conducts regular security meetings to review cybersecurity reports, recommendations, and opportunities for ongoing improvement.[5][10]

Defendify has a partner program for reselling cybersecurity and adding recurring revenue. Defendify designed the partner program for MSPs, MSSPs, VARs, GRC, Security Integrators, Systems Contractors, consultants, industry associations and organizations, and more. Defendify bills partners monthly for the number of organizations they protect and licenses their customers are using. Defendify is SOC 2 compliant. Defendify rebranded from Launch Security.[1][3][5][6][7][8][10][11]

Defendify on the record

Sources

Defendify full record

  1. [1]defendify.comDefendify · defendify.com · undated page, accessed November 11, 2026 · Tier A
  2. [2]All-In-One Cybersecurity® Platform | DefendifyDefendify · undated page, accessed November 11, 2026 · Tier A
  3. [3]Company | DefendifyDefendify · undated page, accessed November 11, 2026 · Tier A
  4. [4]Layered Security | DefendifyDefendify · undated page, accessed November 11, 2026 · Tier A
  5. [5]Pricing | DefendifyDefendify · undated page, accessed November 11, 2026 · Tier A
  6. [6]Stay Ahead of a Cyber Attack with Detection & Response | DefendifyDefendify · undated page, accessed November 11, 2026 · Tier A
  7. [7]Reinforce Cybersecurity Awareness with Policies & Training | DefendifyDefendify · undated page, accessed November 11, 2026 · Tier A
  8. [8]Defendify Essentials Package | DefendifyDefendify · undated page, accessed November 11, 2026 · Tier A
  9. [9]Cybersecurity Service Warranty | DefendifyDefendify · undated page, accessed November 11, 2026 · Tier A
  10. [10]Partner Program | DefendifyDefendify · undated page, accessed November 11, 2026 · Tier A
  11. [11]Security | DefendifyDefendify · undated page, accessed November 11, 2026 · Tier A
  12. [12]Defendify Earns Third Straight Inc. 5000 Honor by Making Enterprise-Grade Cybersecurity Accessible to All OrganizationsDefendify · published August 11, 2026 · Tier A

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

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