CISO Tribune

Vendor comparison · 2 companies

DefenseStorm vs Quorum Cyber

DefenseStorm sells a cyber risk management platform designed exclusively for U.S. banks and credit unions. Quorum Cyber delivers Microsoft-first, threat-led cyber security services. 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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  • DefenseStorm
  • Quorum Cyber
DefenseStorm vs Quorum Cyber: Products, Customers and Funding Compared
DefenseStormDefenseStorm sells a cyber risk management platform designed exclusively for U.S. banks and credit unions.defensestorm.comQuorum CyberQuorum Cyber delivers Microsoft-first, threat-led cyber security services.quorumcyber.com
What it sells
  • Collaborative SOC[1][2]A 24X7 SOC of banking-fluent cybersecurity analysts.
  • GRID Active[1][2][4][8][9]DefenseStorm's intelligent data engine.
  • GRID Active Threat Surveillance[4]Gathers and analyzes data from many sources and identifies threats in the customer's environment.
  • GRID Active Risk Assessment and Governance Package[8]Aligns an institution's risk and governance to evidence the effectiveness of control in its risk assessment.
  • GRID Active Reporting[4]Reporting for financial institutions based on consistent metrics.
  • Vulnerability Management Services[4]An option integrated with the GRID Active platform.
  • Clarity Defend[1][3][6]Managed detection and response service providing 24/7 monitoring, detection and response to attacks.
  • Clarity Extend[1][3]Enhanced security coverage extending monitoring to Microsoft Cloud and third-party technologies across an organization's IT ecosystem.
  • Clarity Protect[1][3]Service that detects and stops threats, reduces cyber risk, and strengthens security across Microsoft and AI environments, including a CTEM offering.
  • Clarity Data & AI[1][3]Service that helps organizations understand, protect and govern data, reducing exposure to insider threats and AI-related risks.
  • Clarity OT[3]Managed detection and response service for operational technology environments.
  • Incident Response Services[3]Services including incident response preparedness, retainer agreements, and emergency MDR for breach investigation and containment.
Categories
Headquarters
Not stated on its pagesEdinburgh, United Kingdom[1]
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
Not stated on its pages
  • September 16, 2026Quorum Cyber announced that it has signed a definitive agreement to acquire Ontinue, a managed extended detection and response provider.[12]
G2 and Gartner Peer Insights
  • G2: listed, seen October 31, 2026[3]
  • 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
DefenseStorm describes its solution as designed for the cyber threat and compliance demands facing the financial services industry. DefenseStorm describes solutions designed for the needs of banks and credit unions and for efficiencies at community financial institutions. DefenseStorm's co-managed approach lets customer teams view configuration logs while DefenseStorm cybersecurity experts monitor the environment 24/7.Not written yet
Last verified
September 30, 2026October 7, 2026

Where they overlap

  • MDR and managed SOC is the primary category of both DefenseStorm and Quorum Cyber.

Where they differ, field by field

  • DefenseStorm is also filed under SIEM, EDR and XDR and Compliance automation. Quorum Cyber is also filed under Incident response and forensics, Security consulting and advisory and OT and ICS security.
  • DefenseStorm lists Collaborative SOC, GRID Active, GRID Active Threat Surveillance, GRID Active Risk Assessment and Governance Package, GRID Active Reporting and 1 more. Quorum Cyber lists Clarity Defend, Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT and 1 more.
  • Quorum Cyber is headquartered in Edinburgh, United Kingdom.

How they differ

CISO Tribune files DefenseStorm under MDR and managed SOC, SIEM, EDR and XDR, and Compliance automation, and files Quorum Cyber under MDR and managed SOC, Incident response and forensics, Security consulting and advisory, and OT and ICS security. Both have MDR and managed SOC as their primary category. DefenseStorm sells a cyber risk management platform designed exclusively for U.S. banks and credit unions. Its Collaborative SOC pairs customers with a US-based, banking-fluent analyst 24x7x365, and its GRID Active data engine unifies threat operations, risk intelligence, governance, and AI. Customers can add EDR functionality and Vulnerability Management Services to GRID Active.

Quorum Cyber sells Clarity Defend, a managed detection and response service providing 24/7 monitoring, detection and response. Its other offerings include Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT for operational technology, and Incident Response Services with retainer agreements. Quorum Cyber describes its services as Microsoft-first and is a Microsoft Solutions Partner for Security. The overlap is in managed detection and response; DefenseStorm adds risk assessment, governance and reporting for financial institutions, while Quorum Cyber adds incident response and OT monitoring.

Quorum Cyber is headquartered in Edinburgh, United Kingdom, and was founded there in 2016. It states that it protects 400+ organisations across four continents and has over 350 employees across the UK, US, Canada and UAE. DefenseStorm cites 200+ banks and credit unions as customers. On September 16, 2026, Quorum Cyber announced a definitive agreement to acquire Ontinue, a managed extended detection and response provider.

What it sells: DefenseStorm

What Collaborative SOC does[1][2]
A US-based, senior banking-fluent cybersecurity analyst collaborates with the customer on a case, 24x7x365. DefenseStorm analysts work alongside AI-enhanced triage to investigate with banking context.
What GRID Active does[1][2][4][8][9]
GRID Active unifies threat operations, risk intelligence, governance, and AI. Seven Built for Banking (B4B) AI Principles govern every AI capability inside GRID Active. Customers can add EDR functionality and Vulnerability Management Services, both integrated with the GRID Active platform.
What GRID Active Threat Surveillance does[4]
GRID Active Threat Surveillance gathers and analyzes data from all types of sources, technology, tools, and systems and identifies threats in the customer's environment. GRID Active Threat Surveillance includes an Incident Similarity feature that applies machine learning to incident monitoring and management.
What GRID Active Risk Assessment and Governance Package does[8]
GRID Active Risk Assessment and Governance Package aligns an institution's risk and governance to evidence the effectiveness of control in its risk assessment. Institutions can filter risk assessments to create smaller assessments such as an eBanking risk assessment, or one large information security risk assessment encompassing all risks in the register. Pre-mapped Task Schedule templates schedule program activities, and the activities map into framework and self-assessment directives as evidence.
What GRID Active Reporting does[4]
GRID Active Reporting supports decision-making by financial institutions through consistent metrics. Financial institutions can customize reports based on audience and timing.
What Vulnerability Management Services does[4]
Customers can add Vulnerability Management Services, integrated with the GRID Active platform, to their cybersecurity risk management solution. DefenseStorm vulnerability scanning lets customers assess their system and discover weaknesses an adversary may be able to exploit.

Questions about DefenseStorm and Quorum Cyber

What do DefenseStorm and Quorum Cyber sell?
DefenseStorm sells Collaborative SOC, GRID Active, GRID Active Threat Surveillance, GRID Active Risk Assessment and Governance Package, GRID Active Reporting and 1 more. Quorum Cyber sells Clarity Defend, Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT and 1 more.
Are DefenseStorm and Quorum Cyber in the same category?
Yes. MDR and managed SOC is the primary category of both on CISO Tribune.
Where are DefenseStorm and Quorum Cyber headquartered?
Quorum Cyber is headquartered in Edinburgh, United Kingdom.
Who are DefenseStorm and Quorum Cyber sold to?
DefenseStorm describes its solution as designed for the cyber threat and compliance demands facing the financial services industry.
What have DefenseStorm and Quorum Cyber announced recently?
September 16, 2026: Quorum Cyber announced that it has signed a definitive agreement to acquire Ontinue, a managed extended detection and response provider.

About DefenseStorm

DefenseStorm sells a cyber risk management platform designed exclusively for U.S. banks and credit unions. DefenseStorm backs its platform with a 24X7 Collaborative SOC of banking-fluent cybersecurity analysts. DefenseStorm cites 200+ banks and credit unions alongside 16,000+ banking-specific controls mapped across industry control frameworks, regulatory guidance, and exam procedures.[1]

DefenseStorm governs its AI capabilities with seven Built for Banking AI Principles, mapped to NIST AI RMF and CRI FS AI RMF. DefenseStorm states that every AI output is explainable to a non-technical professional. DefenseStorm describes AI capability as growing step by step, under explicit policy, with human-in-the-loop boundaries. DefenseStorm says 12 years of banking-only threat patterns, examiner expectations, and industry control frameworks inform every AI output.[1]

DefenseStorm offers managed detection and response (MDR) built for the attack patterns, industry control frameworks, and operational realities of financial institutions. DefenseStorm states that a US-based, senior banking-fluent cybersecurity analyst collaborates with the customer on a case, 24x7x365. DefenseStorm analysts work alongside AI-enhanced triage to investigate with banking context and generate structured evidence for governance reporting. DefenseStorm describes a co-managed approach in which customers view configuration logs showing how their environment is monitored 24/7 by DefenseStorm cybersecurity experts.[4]

GRID Active Threat Surveillance gathers and analyzes data from all types of sources, technology, tools, and systems and identifies threats in the customer's environment. GRID Active Threat Surveillance now includes an Incident Similarity feature that applies machine learning to incident monitoring and management. Customers can add EDR functionality and Vulnerability Management Services, both integrated with the GRID Active platform, to their cybersecurity risk management solution. DefenseStorm vulnerability scanning lets customers assess their system and discover weaknesses an adversary may be able to exploit. Employee Activity Monitoring is included with Threat Surveillance and monitors user access, permissions and actions. DefenseStorm integrations can include tools for intrusion detection, firewalls, threat intelligence platforms, and identity and access management systems. DefenseStorm has a team of cybersecurity experts covering implementation, product training and ongoing platform support. A DefenseStorm security engineer who began in 2020 developed DefenseStorm's EDR Service. DefenseStorm appointed its Director of Cyber Threat Intelligence in 2022, and that role is responsible for nearly all facets of the EDR service. DefenseStorm uploads IOCs related to a vulnerability into its ThreatMatch Feed.[1][4][5][6]

DefenseStorm turns every alert, investigation, and decision into structured evidence mapped to CRI Profile, NIST CSF 2.0, and exam procedures. DefenseStorm offers continuous control monitoring across 16,000+ controls. DefenseStorm risk scoring is shaped by real alerts and incidents. DefenseStorm governance aligns to FFIEC examination procedures, GLBA Safeguards requirements, the NIST Cybersecurity Framework (including CSF 2.0), NCUA expectations, and the CRI Profile.[7]

GRID Active Risk Assessment and Governance Package aligns an institution's risk and governance to evidence the effectiveness of control in its risk assessment. GRID Active Risk Assessment and Governance Package lets institutions filter risk assessments to create smaller assessments such as an eBanking risk assessment, or one large information security risk assessment encompassing all risks in the register. Pre-mapped Task Schedule templates schedule program activities, and the activities map into framework and self-assessment directives as evidence. DefenseStorm lets customers schedule governance and monitoring activities to align with their cyber security compliance program cadences. GRID Active Reporting lets financial institutions customize reports based on audience and timing. DefenseStorm's governance product is integration-ready across core banking, digital banking, authentication, and cloud platforms.[1][4][7][8]

DefenseStorm unifies threat operations, risk intelligence, governance, and AI in GRID Active, its intelligent data engine. DefenseStorm states that one provider replaces separate SIEM, EDR, SOC, risk assessment, vulnerability management, brand management, security awareness training, and governance tools. DefenseStorm runs risk and governance on the same platform as its threat operations. DefenseStorm's governance product connects cyber risk assessments, control monitoring, evidence collection, and board reporting into one continuous program.[7]

DefenseStorm describes its solution as co-managed, cloud-based and compliance-automated, designed specifically for the cyber threat and compliance demands facing the financial services industry.[1][4][7]

DefenseStorm on the record

Sources

DefenseStorm full record

  1. [1]defensestorm.comDefenseStorm · defensestorm.com · undated page, accessed September 30, 2026 · Tier A
  2. [2]Cyber Risk Management Platform for Banks | DefenseStormDefenseStorm · undated page, accessed October 31, 2026 · Tier A
  3. [3]DefenseStorm Reviews 2026: Details, Pricing, & Features | G2G2 · undated page, accessed October 31, 2026 · Tier C
  4. [4]Threat Detection for Financial InstitutionsDefenseStorm · undated page, accessed November 10, 2026 · Tier A
  5. [5]Evolve Bank and Trust Breach - DefenseStormDefenseStorm · undated page, accessed November 10, 2026 · Tier A
  6. [6]Barracuda ESG Vulnerability CVE-2023-2868 Reported - DefenseStormDefenseStorm · undated page, accessed November 10, 2026 · Tier A
  7. [7]Cyber Risk Management for Financial Institutions | DefenseStormDefenseStorm · undated page, accessed November 10, 2026 · Tier A
  8. [8]Cyber Security Risk and Governance for Financial InstitutionsDefenseStorm · undated page, accessed November 10, 2026 · Tier A
  9. [9]Executive Leadership at DefenseStormDefenseStorm · undated page, accessed November 10, 2026 · Tier A

Quorum Cyber full record

  1. [1]quorumcyber.comQuorum Cyber · quorumcyber.com · undated page, accessed October 7, 2026 · Tier A
  2. [2]Difenda will rebrand as quorum cyberQuorum Cyber · quorumcyber.com · undated page, accessed October 7, 2026 · Tier A
  3. [3]Microsoft Cyber Security Services Provider | Quorum CyberQuorum Cyber · undated page, accessed October 31, 2026 · Tier A
  4. [4]About Quorum | Cyber Security CompanyQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  5. [5]Why I’m Passionate about Protecting British Organisations from Cybercrime - Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  6. [6]Managed Security Services | Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  7. [7]Cyber Resilience Assessment | Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  8. [8]Quorum Cyber Managed XDR integrates with Microsoft Security Technology - Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  9. [9]Quorum Cyber is leveraging Copilot for Security at scale - Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  10. [10]Customers Informed of Microsoft Data Breach - Quorum CyberQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  11. [11]Quorum Cyber appoints Chief Information Security OfficerQuorum Cyber · undated page, accessed November 10, 2026 · Tier A
  12. [12]Quorum Cyber Announces Intent to Acquire Ontinue, Building an Unrivaled Microsoft-First Agentic SOC for the Autonomous Threat EraPRNewswire · published September 16, 2026 · Tier A

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