CISO Tribune

Vendor comparison · 2 companies

Quorum Cyber vs WithSecure

Quorum Cyber delivers Microsoft-first, threat-led cyber security services. WithSecure builds and maintains cybersecurity products and services to protect businesses and organizations from cyber threats. 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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Up to four companies side by side.

  • Quorum Cyber
  • WithSecure
Quorum Cyber vs WithSecure: Products, Customers and Funding Compared
Quorum CyberQuorum Cyber delivers Microsoft-first, threat-led cyber security services.quorumcyber.comWithSecureWithSecure builds and maintains cybersecurity products and services to protect businesses and organizations from cyber threats.withsecure.com
What it sells
  • 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.
  • Elements[1][3][7][9][10][11]WithSecure Elements is a portfolio of cybersecurity offerings sold in pre-packaged bundles.
  • Elements Endpoint Security[9]Endpoint security product for Mac, Windows and Linux workstations and servers.
  • Elements Identity Security[9]Identity security product for Microsoft Entra ID.
  • WithSecure MDR[9]Managed detection and response service run by WithSecure experts for endpoints and identities.
Categories
Headquarters
Edinburgh, United Kingdom[1]Not 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
  • September 16, 2026Quorum Cyber announced that it has signed a definitive agreement to acquire Ontinue, a managed extended detection and response provider.[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: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Not written yetThe WithSecure Elements portfolio is geared to help mid-sized companies move from reactive to proactive cyber security measures. A separate bundle is for MSPs serving mid-sized or higher-risk clients who need proactive and reactive coverage. WithSecure describes one platform designed for midsize organizations.
Last verified
October 7, 2026November 5, 2026

Where they overlap

  • Quorum Cyber and WithSecure are both filed under MDR and managed SOC.

Where they differ, field by field

  • Quorum Cyber's primary category is MDR and managed SOC; WithSecure's is Endpoint protection platforms.
  • Quorum Cyber is also filed under Incident response and forensics, Security consulting and advisory and OT and ICS security. WithSecure is also filed under EDR and XDR and Mobile security.
  • Quorum Cyber lists Clarity Defend, Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT and 1 more. WithSecure lists Elements, Elements Endpoint Security, Elements Identity Security and WithSecure MDR.
  • Quorum Cyber is headquartered in Edinburgh, United Kingdom.

What it sells: WithSecure

What Elements does[1][3][7][9][10][11]
The WithSecure Elements portfolio is geared to help mid-sized companies move from reactive to proactive cyber security measures. Elements bundles are sold pre-packaged. The Elements integration with ConnectWise PSA automatically forwards security activity from Elements into ConnectWise PSA as tickets.
What Elements Endpoint Security does[9]
WithSecure Elements Endpoint Security covers Mac, Windows, and Linux workstations and servers. One lightweight agent blocks known and unknown threats, including fileless attacks and malware with no known signature. Users can isolate a device, kill a process, quarantine a file, or block a network connection in one click from the management console.
What Elements Identity Security does[9]
WithSecure Elements Identity Security is for Microsoft Entra ID. WithSecure experts detect and respond to Entra ID credential theft, privilege escalation, and business email compromise 24/7.
What WithSecure MDR does[9]
WithSecure MDR handles 24/7 detection and response. For endpoints, WithSecure experts monitor, investigate, and respond to endpoint threats 24/7. For identities, WithSecure experts detect and respond to Entra ID credential theft, privilege escalation, and business email compromise 24/7.

Questions about Quorum Cyber and WithSecure

What do Quorum Cyber and WithSecure sell?
Quorum Cyber sells Clarity Defend, Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT and 1 more. WithSecure sells Elements, Elements Endpoint Security, Elements Identity Security and WithSecure MDR.
Are Quorum Cyber and WithSecure in the same category?
They share MDR and managed SOC. Quorum Cyber's primary category is MDR and managed SOC and WithSecure's is Endpoint protection platforms.
Where are Quorum Cyber and WithSecure headquartered?
Quorum Cyber is headquartered in Edinburgh, United Kingdom.
Who are Quorum Cyber and WithSecure sold to?
The WithSecure Elements portfolio is geared to help mid-sized companies move from reactive to proactive cyber security measures.
What have Quorum Cyber and WithSecure 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 Quorum Cyber

Quorum Cyber delivers Microsoft-first, threat-led cyber security services. Quorum Cyber was founded in Edinburgh in 2016. Federico Charosky founded Quorum Cyber. Quorum Cyber is a Microsoft Solutions Partner for Security and works with the Microsoft Security stack, including Microsoft 365 Defender and Microsoft Sentinel.

Quorum Cyber says AI changes how organisations work and how attackers operate. Quorum Cyber helps security teams protect data, manage emerging risks and enable secure adoption.

Clarity is more than the name of Quorum Cyber's customer platform and managed security services. Quorum Cyber unifies Microsoft 365 Defender and Microsoft Sentinel in Clarity, turning raw signals into prioritised incidents. Quorum Cyber offers three managed detection and response services, plus a dedicated data security service.[6]

Quorum Cyber's Cyber Resilience Assessment evaluates how well an organisation can manage cyber disruption. Quorum Cyber's Security Maturity Assessment looks at the effectiveness of a wider security programme, including governance, controls and risk management.[7]

Quorum Cyber has an Incident Response team that helps organisations investigate and manage cyber incidents. Quorum Cyber's Security Operations Centre works to detect and respond to customer threats. Quorum Cyber offers an incident response retainer that customers can initiate. Quorum Cyber offers Managed XDR, which integrates with Microsoft Security Technology. Quorum Cyber works with the generative AI capabilities of Copilot for Security to help defend customers against cyber threats. Quorum Cyber has a Threat Intelligence team. Following two acquisitions in 2024, Quorum Cyber's services range from phishing simulation and managed services to incident response and ransom negotiation.[7][8][9][10]

Quorum Cyber states that it protects 400+ organisations across four continents. Quorum Cyber has over 350 employees across the UK, US, Canada and UAE. Quorum Cyber is also a member of the Microsoft Intelligent Security Association and a Microsoft Security Copilot Partner.[6][7][11]

Quorum Cyber on the record

Sources

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

WithSecure full record

  1. [1]withsecure.comWithSecure · withsecure.com · undated page, accessed November 5, 2026 · Tier A
  2. [2]Business suite privacy policyWithSecure · withsecure.com · published July 1, 2022 · Tier A
  3. [3]Press releasesWithSecure · withsecure.com · undated page, accessed November 5, 2026 · Tier A
  4. [4]Privacy and Security - WithSecure™WithSecure · undated page, accessed November 10, 2026 · Tier A
  5. [5]European Cybersecurity for MSPs | WithSecureWithSecure · undated page, accessed November 10, 2026 · Tier A
  6. [6]Building and sustaining digital trust, confidence and equity - WithSecure™WithSecure · undated page, accessed November 10, 2026 · Tier A
  7. [7]Why WithSecure - WithSecure™WithSecure · undated page, accessed November 10, 2026 · Tier A
  8. [8]Trade compliance - WithSecure™WithSecure · undated page, accessed November 10, 2026 · Tier A
  9. [9]Pricing - WithSecure™WithSecure · undated page, accessed November 10, 2026 · Tier A
  10. [10]Network addresses for WithSecure Elements (cloud-managed products) - WithSecure™WithSecure Support · undated page, accessed November 10, 2026 · Tier A
  11. [11]ConnectWise PSA Integration | WithSecure™ ConnectWithSecure Connect · undated page, accessed November 10, 2026 · Tier A
  12. [12]WithSecure™ Cloud Protection for Salesforce Terms of Service - WithSecure™WithSecure · undated page, accessed November 10, 2026 · Tier A

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