CISO Tribune

Vendor comparison · 2 companies

Stellar Cyber vs ThreatDefence

Stellar Cyber sells a SecOps platform that uses AI for threat detection and response through unified NG-SIEM, NDR, and Open XDR capabilities. ThreatDefence delivers a fully managed 24×7 SOC as a Service that combines its SecOps Platform with a team of cyber security experts who monitor, investigate and respond. CISO Tribune files both under SIEM, AI SOC analysts and 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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  • Stellar Cyber
  • ThreatDefence
Stellar Cyber vs ThreatDefence: Products, Customers and Funding Compared
Stellar CyberStellar Cyber sells a SecOps platform that uses AI for threat detection and response through unified NG-SIEM, NDR, and Open XDR capabilities.stellarcyber.aiThreatDefenceThreatDefence delivers a fully managed 24×7 SOC as a Service that combines its SecOps Platform with a team of cyber security experts who monitor, investigate and respond.threatdefence.com
What it sells
  • 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.
  • SecOps Platform[2][3][4][5]A platform providing end-to-end coverage and threat detection, backed by an AI-enabled 24x7 SOC.
  • SOC as a Service[2]A fully managed 24×7 SOC that combines the SecOps Platform with a team of cyber security experts.
  • SIEM[1][5][6]A SIEM built for investigation that connects, enriches and keeps security events searchable.
  • Network Detection and Response[3]Network Detection and Response sensors and a deception toolset to discover lateral movement.
  • Compromise Assessment[8]A review of an environment to reveal existing or past intrusions and security weaknesses.
  • Cyber Risk Management[9]A solution that assists customers in proactively identifying security gaps in their environment.
  • Cyber Range[10]Cyber range solutions with simulations of cyber attacks for cyber security teams and students.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Privately held[3][4]Not stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • October 5, 2026Stellar Cyber announced version 7.0 of its security operations platform, adding AI case triage, case metrics and expanded automated response.[16]
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: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
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.Not written yet
Last verified
November 9, 2026November 10, 2026

Where they overlap

  • Stellar Cyber and ThreatDefence are both filed under SIEM, AI SOC analysts and MDR and managed SOC.

Where they differ, field by field

  • Stellar Cyber's primary category is SIEM; ThreatDefence's is MDR and managed SOC.
  • ThreatDefence is also filed under Network detection and response.
  • Stellar Cyber lists Stellar Cyber Open XDR Platform. ThreatDefence lists SecOps Platform, SOC as a Service, SIEM, Network Detection and Response, Compromise Assessment and 2 more.
  • Stellar Cyber is privately held.

What it sells: ThreatDefence

What SOC as a Service does[2]
ThreatDefence continuously monitors customer environments across cloud, network, endpoints, identity and applications. ThreatDefence analysts conduct scheduled and intelligence-led hunts to identify indicators of compromise, lateral movement, credential misuse and living-off-the-land activity. ThreatDefence customers have access to a dedicated portal with real-time dashboards, incident timelines, analyst notes, reporting and service visibility.
What Network Detection and Response does[3]
ThreatDefence offers Network Detection and Response sensors and a deception toolset to discover lateral movement. ThreatDefence network detection covers lateral movement and insider threats using session evidence and packet analysis. ThreatDefence agents connect network findings with endpoint and identity activity, helping analysts assess the scope and prepare targeted containment.
What Compromise Assessment does[8]
ThreatDefence offers a Compromise Assessment that helps reveal existing or past intrusions, identify vulnerabilities or weaknesses, and detect malicious activity, policy violations and security misconfigurations. ThreatDefence deploys sensors to collect real-time data from endpoints, cloud and network. ThreatDefence inspects an environment over an extended period of time to identify dormant malware or covert threat actors.
What Cyber Risk Management does[9]
ThreatDefence offers a Cyber Risk Management solution that assists customers in proactively identifying security gaps in their environment. ThreatDefence provides automated weekly and monthly reporting based on operational and compliance needs. ThreatDefence pinpoints vulnerable, exploitable or misconfigured systems in a customer network.
What Cyber Range does[10]
ThreatDefence offers cyber range solutions that provide simulations of cyber attacks for cyber security teams and students. ThreatDefence runs simulations on virtual replicas of critical infrastructure networks including power grids, train control systems and water treatment plants. The platform of ThreatDefence organizes trainees into groups dedicated to specific missions and objectives.

Questions about Stellar Cyber and ThreatDefence

What do Stellar Cyber and ThreatDefence sell?
Stellar Cyber sells Stellar Cyber Open XDR Platform. ThreatDefence sells SecOps Platform, SOC as a Service, SIEM, Network Detection and Response, Compromise Assessment and 2 more.
Are Stellar Cyber and ThreatDefence in the same category?
They share SIEM, AI SOC analysts and MDR and managed SOC. Stellar Cyber's primary category is SIEM and ThreatDefence's is MDR and managed SOC.
Who owns Stellar Cyber and ThreatDefence?
Stellar Cyber is privately held.
Who are Stellar Cyber and ThreatDefence sold to?
Stellar Cyber describes its open SecOps platform as built for lean security teams and MSSPs.
What have Stellar Cyber and ThreatDefence announced recently?
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 Stellar Cyber

Stellar Cyber sells a SecOps platform that uses AI for threat detection and response through unified NG-SIEM, NDR, and Open XDR capabilities. Stellar Cyber includes Next-Gen SIEM, NDR, UEBA, and more for a single price. Stellar Cyber covers the entire attack surface across cloud, endpoint, network, applications and users with consolidated tools under a single Data Lake, a single AI engine, a single pane of glass and a single license. Stellar Cyber unifies data from any tool, cloud, or source into a single MITRE-aligned case timeline. Stellar Cyber connects to customers' tools and telemetry through two-way integrations.[1][2][5][6][7][9]

Stellar Cyber collects data from any security product, IT, and productivity tool using pre-built integrations. Stellar Cyber collects raw network and log data to identify additional threats. Stellar Cyber automatically normalizes and enriches data for analysis. Stellar Cyber has 400+ integrations. Stellar Cyber comes with a suite of embedded security applications, such as IDS and sandboxing.[8][10]

Stellar Cyber has bi-directional, out-of-the-box integrations for 32 EDRs, and endpoint data is automatically enriched with network, identity, cloud, and application logs. Stellar Cyber lets users integrate unlimited instances of multiple types of EDRs, or one instance of a single type, and manage all operations from one platform.[11]

Stellar Cyber combines static rules, supervised and unsupervised machine learning, and automated threat hunting to identify advanced threats. Stellar Cyber lets users schedule repeatable threat hunts across the entire dataset. Stellar Cyber creates correlated cases that give security analysts prioritized threats to investigate. Stellar Cyber's automatic triage discards false positives and prioritizes real threats. Stellar Cyber lets users respond to threats automatically or manually directly from the platform. Stellar Cyber monitors cloud, endpoint, network, and IoT environments in real time.[8][12]

Stellar Cyber uses Machine Learning and Deep Learning models designed to eliminate reliance on rules and manual threat detection methods. Stellar Cyber uses unsupervised machine learning techniques to uncover unknown and zero-day threats. Stellar Cyber correlates detections and other data signals through a GraphML-based AI that automatically assembles related data points. Stellar Cyber offers conversational GenAI acting as a virtual investigation assistant. AI Investigator responds to analysts' questions during complex threat analysis.[13]

Stellar Cyber's Agentic AI guides analysts through embedded frameworks and automates routine tasks. Stellar Cyber playbooks can be deployed globally or per tenant, with Agentic AI enabling adaptive responses. Stellar Cyber provides built-in playbooks for standard actions and custom playbooks that trigger EDR responses, call webhooks, or send emails. Stellar Cyber integrates with SOAR, EDR, and threat intelligence platforms.[12][13]

Stellar Cyber Open XDR can be deployed and used on-premises, from the cloud, or co-managed by an MSSP of your choice. Stellar Cyber's license is consumption-based and includes all features, functions, future advancements, and enablement. Stellar Cyber lets MSSPs manage multiple clients through a single platform while maintaining client data separation. Stellar Cyber supports client-branded dashboards and reports.[7][15]

FUJISOFT introduced Stellar Cyber to its own company in 2018 and has been providing SOC services for customers using Stellar Cyber and other products since 2020. Stellar Cyber says its open SecOps platform is built for lean security teams and MSSPs.[5][10][12][13][15]

Stellar Cyber on the record

Sources

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

ThreatDefence full record

  1. [1]threatdefence.comThreatDefence · threatdefence.com · undated page, accessed November 10, 2026 · Tier A
  2. [2]24x7 SOC as a Service | Managed SOC Monitoring and ResponseThreatDefence · undated page, accessed November 11, 2026 · Tier A
  3. [3]Enterprise Security Operations Platform | 24x7 SOC and SIEMThreatDefence · undated page, accessed November 11, 2026 · Tier A
  4. [4]24x7 Security Operations Team | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  5. [5]AI-Enabled Security Operations Platform and 24x7 SOC | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  6. [6]SIEM as a Service | Next Generation Cloud SIEM | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  7. [7]Industrial SecOps Platform for OT Security | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  8. [8]Cyber Security Compromise Assessment | Breach Detection & Forensics - ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  9. [9]Cybersecurity Risk Management Services | Enterprise Risk Protection | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  10. [10]Cyber Security Simulation & Attack Simulation Platform | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A
  11. [11]Evidence-Based Security for Financial Services | ThreatDefenceThreatDefence · undated page, accessed November 11, 2026 · Tier A

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