CISO Tribune

Vendor comparison · 2 companies

Defendify vs Stellar Cyber

Defendify sells a cybersecurity platform designed for IT teams. Stellar Cyber sells a SecOps platform that uses AI for threat detection and response through unified NG-SIEM, NDR, and Open XDR capabilities. CISO Tribune files both under MDR and managed SOC. 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
  • Stellar Cyber
Defendify vs Stellar Cyber: Products, Customers and Funding Compared
DefendifyDefendify sells a cybersecurity platform designed for IT teams.defendify.comStellar CyberStellar Cyber sells a SecOps platform that uses AI for threat detection and response through unified NG-SIEM, NDR, and Open XDR capabilities.stellarcyber.ai
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.
  • Stellar Cyber Open XDR PlatformA SecOps platform that unifies SIEM, network detection and response, identity threat detection and response, and behavior analytics with AI-driven detection, investigation and response.
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 pagesPrivately held[3][4]
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]
  • October 5, 2026Stellar Cyber announced version 7.0 of its security operations platform, adding AI case triage, case metrics and expanded automated response.[16]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • 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.Stellar Cyber describes its open SecOps platform as built for lean security teams and MSSPs. Stellar Cyber designs its enterprise platform for security teams of any size or skill level. Stellar Cyber Open XDR can be deployed on-premises, from the cloud, or co-managed by an MSSP.
Last verified
November 11, 2026November 9, 2026

Where they overlap

  • Defendify and Stellar Cyber are both filed under MDR and managed SOC.

Where they differ, field by field

  • Defendify's primary category is Managed security service providers; Stellar Cyber's is SIEM.
  • Defendify is also filed under Security awareness training and Vulnerability management. Stellar Cyber is also filed under AI SOC analysts.
  • Defendify lists Phishing Simulations and Cybersecurity Service Warranty. Stellar Cyber lists Stellar Cyber Open XDR Platform.
  • Stellar Cyber is privately held.

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.

Questions about Defendify and Stellar Cyber

What do Defendify and Stellar Cyber sell?
Defendify sells Phishing Simulations and Cybersecurity Service Warranty. Stellar Cyber sells Stellar Cyber Open XDR Platform.
Are Defendify and Stellar Cyber in the same category?
They share MDR and managed SOC. Defendify's primary category is Managed security service providers and Stellar Cyber's is SIEM.
Who owns Defendify and Stellar Cyber?
Stellar Cyber is privately held.
Who are Defendify and Stellar Cyber sold to?
Defendify states that it makes stronger cybersecurity possible for all organizations. Stellar Cyber describes its open SecOps platform as built for lean security teams and MSSPs.
What have Defendify and Stellar Cyber 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. October 5, 2026: Stellar Cyber announced version 7.0 of its security operations platform, adding AI case triage, case metrics and expanded automated response.

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

Stellar Cyber full record

  1. [1]ProductStellar Cyber · stellarcyber.ai · published February 25, 2026 · Tier A
  2. [2]Stellar cyber announces agentic ai autonomous soc in 6 4 0 releaseStellar Cyber · stellarcyber.ai · published March 16, 2026 · Tier A
  3. [3]Stellar cyber named one of americas best startup employersStellar Cyber · stellarcyber.ai · published November 21, 2024 · Tier A
  4. [4]ISOC Platform with AI SIEM, NDR, Open XDR & Multi-Layer AIStellar Cyber · undated page, accessed October 29, 2026 · Tier A
  5. [5]Stellar Cyber Automation-driven SecOps PlatformStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  6. [6]Stellar Cyber vs Sumo Logic: Expert SIEM Solution ComparisonStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  7. [7]Stellar Cyber vs Splunk: In-Depth SIEM Solution ComparisonStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  8. [8]Integrated Security Operations Center (ISOC) PlatformStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  9. [9]SC vs Microsoft Sentinel: Comprehensive SIEM SolutionStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  10. [10]SC vs. CrowdStrike | Compare Leading Cybersecurity PlatformsStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  11. [11]EDR Software, Endpoint Detection & ResponseStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  12. [12]Stellar Cyber Autonomous SOC PlatformStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  13. [13]Stellar Cyber Multi-Layer AI™ | Advanced AI Platform for SecOpsStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  14. [14]Stellar Cyber AI SIEM | AI-Driven SIEM PlatformStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  15. [15]Stellar Cyber vs AlienVault: In-Depth SIEM Solution ComparisonStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  16. [16]Stellar Cyber 7.0 Makes the Agentic SOC Measurable, Actionable and Operational at ScaleStellar Cyber · published October 5, 2026 · Tier A

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