CISO Tribune

Vendor comparison · 2 companies

Daylight vs Quorum Cyber

Daylight sells managed agentic security services that combine an AI-native security platform with human expertise to detect, investigate, and respond to cyber threats. 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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Up to four companies side by side.

  • Daylight
  • Quorum Cyber
Daylight vs Quorum Cyber: Products, Customers and Funding Compared
DaylightDaylight sells managed agentic security services that combine an AI-native security platform with human expertise to detect, investigate, and respond to cyber threats.daylight.aiQuorum CyberQuorum Cyber delivers Microsoft-first, threat-led cyber security services.quorumcyber.com
What it sells
  • MDR[1][4][5][6][8]A managed detection and response service in which Daylight owns the detection-to-response cycle from alert ingestion to resolution.
  • Phishing[1][4]Handles user-reported emails and security alerts around the clock as part of MDR.
  • DLP[1][4][5]Adds an investigation and response layer to DLP signals.
  • Security Data Lake[1]A security data lake meant to replace a SIEM.
  • 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
Privately heldNot 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: 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 yetNot written yet
Last verified
November 10, 2026October 7, 2026

Where they overlap

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

Where they differ, field by field

  • Daylight is also filed under Security data lakes and pipelines, Data loss prevention and AI model and agent security. Quorum Cyber is also filed under Incident response and forensics, Security consulting and advisory and OT and ICS security.
  • Daylight lists MDR, Phishing, DLP and Security Data Lake. 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.
  • Daylight is privately held.

How they differ

CISO Tribune files both Daylight and Quorum Cyber under MDR and managed SOC as their primary category. Daylight sells an MDR service in which it owns the detection-to-response cycle from alert ingestion to resolution, and that MDR includes AI Security, phishing, and DLP. Daylight also sells a security data lake meant to replace a SIEM, keeping 90 days of telemetry hot and searchable. Quorum Cyber sells a set of Clarity services: Clarity Defend for MDR, Clarity Extend for monitoring across Microsoft Cloud and third-party technologies, Clarity Protect, Clarity Data & AI, and Clarity OT for operational technology environments. Quorum Cyber also sells Incident Response Services, including preparedness, retainer agreements, and emergency MDR.

Quorum Cyber is headquartered in Edinburgh, United Kingdom, and describes its services as Microsoft-first. It is a Microsoft Solutions Partner for Security and works with Microsoft 365 Defender and Microsoft Sentinel. Daylight's MDR instead begins investigations with identity, cloud, endpoint, SaaS, and historical context, and Daylight states it has 120+ integrations. Daylight is privately held.

Quorum Cyber states that it protects 400+ organisations across four continents and has over 350 employees across the UK, US, Canada and UAE. Daylight's named customers include Antidote Health, a health tech company delivering health insurance solutions in the U.S., and Lusha, a B2B sales intelligence platform. On September 16, 2026, Quorum Cyber announced a definitive agreement to acquire Ontinue, a managed extended detection and response provider.

What it sells: Daylight

What MDR does[1][4][5][6][8]
Daylight owns the full detection-to-response cycle from alert ingestion to resolution, with contractual accountability. Investigations begin with identity, cloud, endpoint, SaaS, and historical context. For every confirmed case, Daylight drives remediation to completion, such as revoking sessions, resetting credentials, and blocking IPs. Daylight's MDR includes AI Security, phishing, and DLP.
What Phishing does[1][4]
Daylight handles user-reported emails and security alerts around the clock as part of MDR. Each reported email and security alert is investigated to a verdict and then remediated across every affected mailbox.
What DLP does[1][4][5]
Daylight adds the investigation and response layer that turns DLP signals into closed cases. Daylight drives real data theft to resolution and explains benign activity instead of only flagging it. DLP is included in Daylight's MDR.
What Security Data Lake does[1]
Daylight keeps 90 days of telemetry hot and immediately searchable, with older data archived at lower cost. Customers search the data themselves using plain English or KQL. Daylight handles the infrastructure, storage, and data operations.

Questions about Daylight and Quorum Cyber

What do Daylight and Quorum Cyber sell?
Daylight sells MDR, Phishing, DLP and Security Data Lake. Quorum Cyber sells Clarity Defend, Clarity Extend, Clarity Protect, Clarity Data & AI, Clarity OT and 1 more.
Are Daylight and Quorum Cyber in the same category?
Yes. MDR and managed SOC is the primary category of both on CISO Tribune.
Where are Daylight and Quorum Cyber headquartered?
Quorum Cyber is headquartered in Edinburgh, United Kingdom.
Who owns Daylight and Quorum Cyber?
Daylight is privately held.
What have Daylight 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 Daylight

Daylight sells managed agentic security services that combine an AI-native security platform with human expertise to detect, investigate, and respond to cyber threats. Under the Managed Agentic Security Services (MASS) model, agents execute security work at scale, while experts provide direction, judgment, and accountability. Daylight's Aura combines AI agents, security experts, and the customer's team into one platform with shared business context. Daylight states that cloud, identity, SaaS, and AI have expanded attack surfaces faster than traditional security services are prepared to follow. Daylight states that traditional services increase capacity by adding analysts, so the number of people required grows as the work grows.[2][3][4][13]

In its MDR service, Daylight owns the full detection-to-response cycle from alert ingestion to resolution, with contractual accountability. Daylight investigations begin with identity, cloud, endpoint, SaaS, and historical context. Daylight adapts its investigation to evidence across identity, endpoint, network, and cloud until the full picture is established. For every confirmed case, Daylight drives remediation to completion, such as revoking sessions, resetting credentials, and blocking IPs. Daylight maps a customer's detection surface against MITRE ATT&CK, covering every rule from each source. Daylight's MDR includes AI Security, phishing, and DLP.[4][5]

Daylight extends its MDR coverage to AI systems, detecting and investigating AI-native threats like agents, MCP servers, and LLM activity. Daylight's AI Security covers AI systems with detection, investigation, and response for every action, not only an audit-log view. Daylight detects malicious instructions and manipulation before agents act on them. Daylight brings every detection rule from a customer's SIEM, cloud, identity, and endpoint tools into a single library that runs continuously across the stack. Daylight handles user-reported emails and security alerts around the clock as part of MDR.[4][5][6]

Daylight's threat hunting uses autonomous agents that continuously hunt across a customer's security ecosystem with IOC- and hypothesis-driven techniques, guided by threat intelligence. Daylight's IOC hunts search for malicious IPs, domains, hashes, identities, and other indicators, then investigate matches and deliver a documented conclusion. When new vulnerabilities, campaigns, and supply-chain attacks emerge, Daylight turns threat intelligence into proactive hunts to determine whether the environment is exposed.[3][7]

Daylight keeps 90 days of telemetry hot and immediately searchable, with older data archived at lower cost and ready to rehydrate for historical investigations, audits, and compliance. Daylight stores raw telemetry as it arrives, without parsers, pipelines, or schemas required before it becomes searchable. Daylight handles the infrastructure, storage, and data operations of the data lake. The same telemetry powering Daylight MDR and threat hunting is available for a customer's own searches and investigations.[7][8]

Daylight manages detection engineering, rule tuning, and ongoing maintenance for customers. Daylight uses bi-directional integration to bring identity, device, cloud, and business context into every investigation and to share results back across the security ecosystem. Daylight uses AI-assisted onboarding and 120+ integrations to connect a customer's environment. Daylight states that its agentic services can develop new integrations within days. Daylight states that its experts across four regions keep customer hours. Daylight's team builds the detections, integrations, and automations for a customer's security program.[3][5][9]

During its POC, Daylight integrated the tools in Antidote Health's environment and set up customized detection rules on cloud, identity, and SaaS applications. Antidote Health is a health tech company delivering health insurance solutions in the U.S. LVT (LiveView Technologies, Inc.) provides rapidly deployable security hardware, powered by a proprietary SaaS platform. Daylight supports Tier 1 triage through automated end-user validation workflows, which let suspicious activity be confirmed directly with employees when appropriate. Daylight ingested Lusha's own API logs and built detection logic for unusual export volumes and scraping behavior. Lusha is a B2B sales intelligence platform.[1][4][7][8][10][11][12][14]

Daylight on the record

Sources

Daylight full record

  1. [1]daylight.aiDaylight · daylight.ai · undated page, accessed November 10, 2026 · Tier A
  2. [2]Daylight vs reliaquestDaylight · daylight.ai · published June 2, 2026 · Tier A
  3. [3]Managed Security Services | DaylightDaylight · undated page, accessed November 11, 2026 · Tier A
  4. [4]Managed Agentic Security ServicesDaylight · undated page, accessed November 11, 2026 · Tier A
  5. [5]Managed Detection and Response (MDR) Services | DaylightDaylight · undated page, accessed November 11, 2026 · Tier A
  6. [6]AI Threat Detection & Security Services | DaylightDaylight · undated page, accessed November 11, 2026 · Tier A
  7. [7]Managed Threat Hunting Services | DaylightDaylight · undated page, accessed November 11, 2026 · Tier A
  8. [8]Managed Security Data Lake | DaylightDaylight · undated page, accessed November 11, 2026 · Tier A
  9. [9]Security Integrations | DaylightDaylight · undated page, accessed November 11, 2026 · Tier A
  10. [10]How Antidote Health Secures a Fast-Changing StackDaylight · undated page, accessed November 11, 2026 · Tier A
  11. [11]How LVT Scaled Security Operations with DaylightDaylight · undated page, accessed November 11, 2026 · Tier A
  12. [12]How Lusha Scaled Security Without Building a SOCDaylight · undated page, accessed November 11, 2026 · Tier A
  13. [13]Our Story | DaylightDaylight · undated page, accessed November 11, 2026 · Tier A
  14. [14]How The Motley Fool Reached Zero Backlog with DaylightDaylight · undated page, accessed November 11, 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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