CISO Tribune

Vendor comparison · 2 companies

BlackCloak vs Quorum Cyber

BlackCloak protects the personal digital lives of executives with cybersecurity, concierge support and incident response. Quorum Cyber delivers Microsoft-first, threat-led cyber security services. CISO Tribune files both under MDR and managed SOC and Incident response and forensics. 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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  • BlackCloak
  • Quorum Cyber
BlackCloak vs Quorum Cyber: Products, Customers and Funding Compared
BlackCloakBlackCloak protects the personal digital lives of executives with cybersecurity, concierge support and incident response.blackcloak.ioQuorum CyberQuorum Cyber delivers Microsoft-first, threat-led cyber security services.quorumcyber.com
What it sells
  • Digital Executive Protection Platform[2][5]A platform built to address the gap between corporate security and the personal digital lives of executives.
  • Impersonation Protection[2]Lets executives authenticate calls, texts, and video messages in real time.
  • Physical Risk Reports[5]Reports that provide a shared intelligence picture on physical risk to executives.
  • 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
  • September 10, 2026BlackCloak launched Perimeter, a physical security offering that extends its digital protection to the physical world around where executives live, work and travel.[4]
  • 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: 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
From its own pages, the company sells mainly to organisations whose executives and board members are targeted in their personal digital lives. It says requests from executives for personal digital protection are rising, driven by peer incidents and family safety concerns. Its individuals site says it protects high-net-worth individuals, their families, and family offices. That site also describes partnerships for consultants, advisors, financial institutions and law firms working directly with high-net-worth individuals.Not written yet
Last verified
September 30, 2026October 7, 2026

Where they overlap

  • BlackCloak and Quorum Cyber are both filed under MDR and managed SOC and Incident response and forensics.

Where they differ, field by field

  • BlackCloak's primary category is Digital risk protection; Quorum Cyber's is MDR and managed SOC.
  • BlackCloak is also filed under Mobile security. Quorum Cyber is also filed under Security consulting and advisory and OT and ICS security.
  • BlackCloak lists Digital Executive Protection Platform, Impersonation Protection and Physical Risk Reports. 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.

What it sells: BlackCloak

What Digital Executive Protection Platform does[2][5]
The platform delivers against four pillars of protection: Privacy & Identity Defense, AI Threat Protection, Executive Threat Intelligence, and Personal Security Operations. It is powered by a Threat Intelligence Engine that gathers insights from open, deep, and dark web sources. Protection is delivered to executives and their families via the BlackCloak app.
What Impersonation Protection does[2]
BlackCloak Impersonation Protection lets executives authenticate calls, texts, and video messages in real time. Executives can send an out-of-band authentication request and authenticate the source of calls, texts, video chats and emails.
What Physical Risk Reports does[5]
Intelligence from OSINT, deep and dark web sources specific to each executive is gathered. Threat credibility and likely intent is assessed by BlackCloak experts. Early warnings for security teams are provided in a downloadable report.

Questions about BlackCloak and Quorum Cyber

What do BlackCloak and Quorum Cyber sell?
BlackCloak sells Digital Executive Protection Platform, Impersonation Protection and Physical Risk Reports. Quorum Cyber sells Clarity Defend, Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT and 1 more.
Are BlackCloak and Quorum Cyber in the same category?
They share MDR and managed SOC and Incident response and forensics. BlackCloak's primary category is Digital risk protection and Quorum Cyber's is MDR and managed SOC.
Where are BlackCloak and Quorum Cyber headquartered?
Quorum Cyber is headquartered in Edinburgh, United Kingdom.
Who are BlackCloak and Quorum Cyber sold to?
From its own pages, the company sells mainly to organisations whose executives and board members are targeted in their personal digital lives.
What have BlackCloak and Quorum Cyber announced recently?
September 10, 2026: BlackCloak launched Perimeter, a physical security offering that extends its digital protection to the physical world around where executives live, work and travel. September 16, 2026: Quorum Cyber announced that it has signed a definitive agreement to acquire Ontinue, a managed extended detection and response provider.

About BlackCloak

BlackCloak protects the personal digital lives of executives with cybersecurity, concierge support and incident response. BlackCloak says executives and their families are targets at home, where corporate security cannot reach.[1][2][6]

The Digital Executive Protection Platform delivers against four pillars of protection: Privacy & Identity Defense, AI Threat Protection, Executive Threat Intelligence, and Personal Security Operations. The platform is powered by a Threat Intelligence Engine that continuously gathers insights from open, deep, and dark web sources. BlackCloak provides aggregated, anonymized insights to the customer team to track progress and measure risk reduction.[1][2]

BlackCloak finds, removes, and hides executives' exposed personal data from broker sites, and monitors for breaches across open, deep, and dark web sources. BlackCloak offers data broker removal to minimize publicly available personal data. BlackCloak detects data exposure using known executive data such as email, addresses and names. BlackCloak automates takedown and opt-out requests. Executives can track progress through a live activity feed on the BlackCloak app.[2]

BlackCloak monitors and analyzes content across multiple channels to detect disinformation campaigns or personal reputational threats before they escalate. BlackCloak monitors eight types of intelligence channels, including news, social media, court filings, and AI-generated content. BlackCloak says deepfake attacks can bypass email filters and awareness training. BlackCloak Impersonation Protection lets executives authenticate calls, texts, and video messages in real time. Executives can send an out-of-band authentication request and authenticate the source of calls, texts, video chats and emails.[2]

BlackCloak offers Physical Risk Reports that provide a shared intelligence picture. For these reports, intelligence from OSINT, deep and dark web sources specific to each executive is gathered. BlackCloak experts assess threat credibility and likely intent. Security teams receive early warnings with context in a downloadable report.

BlackCloak continuously monitors personal devices such as laptops, mobiles, and tablets in the background, securing them with enterprise-grade EDR. Executives install the BlackCloak app on their personal devices. BlackCloak performs security checks across six areas: passcode, biometrics, encryption, OS updates, breach status, and botnet activity. BlackCloak backs EDR and home network scanning with expert-led incident response from its in-house, US-based security operations center. BlackCloak manages detection, remediation, and incident response end-to-end.[2]

BlackCloak works with the customer team to identify who needs protecting and aligns with their assistants to book a confidential Privacy & Exposure Review. BlackCloak gives the customer team a dashboard with aggregated, anonymized metrics on risk exposure reduction that can be used to present to the board. CISOs and security teams have a dedicated account manager for questions on SLAs and billing and on the security of protected executives. BlackCloak operates outside of the customer's corporate cybersecurity technology stack. BlackCloak says it cannot see into executives' personal accounts or browsing history.[2][6]

BlackCloak on the record

Sources

BlackCloak full record

  1. [1]blackcloak.ioBlackCloak · blackcloak.io · undated page, accessed September 30, 2026 · Tier A
  2. [2]BlackCloak | Digital Executive Protection | Personal CybersecurityBlackCloak · undated page, accessed October 30, 2026 · Tier A
  3. [3]BlackCloak | Cybersecurity for High-Profile & HNWIsBlackCloak · undated page, accessed October 30, 2026 · Tier A
  4. [4]BlackCloak Launches BlackCloak Perimeter™, Unifying Cyber and Physical Security for Executive ProtectionBlackCloak · published September 10, 2026 · Tier A
  5. [5]Product - BlackCloak | Protect Your Digital Life™BlackCloak · undated page, accessed November 10, 2026 · Tier A
  6. [6]BlackCloak | Blog | Breaking Down BlackCloak | Concierge ServiceBlackCloak · 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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