# Lumifi

> Lumifi is a Scottsdale cybersecurity company that wraps a U.S.-based, 24/7 security operations team around ShieldVision, its proprietary platform for correlating alerts, automating investigations and coordinating response across customers' existing SIEM, endpoint, network, cloud and identity tools. Founded as Datashield in 2009, sold to ADT in 2017 and reacquired in a reported $30 million transaction in 2022, the business has since expanded through acquisitions and partnerships into a broader managed detection, incident response, compliance and security-consulting provider.

- **Founded:** 2009
- **Headquarters:** Scottsdale, United States
- **Founders:** Michael Malone (CEO and Founder)
- **Team size:** 51-200 on LinkedIn; 125 employees announced after the November 2024 Critical Insight acquisition; supplied company data estimates 210
- **Products:** Managed Detection and Response, ShieldVision, SOC-as-a-Service, Incident Response, Consulting and Professional Services
- **Notable:** ADT acquired Datashield in 2017 and used it to launch ADT Cybersecurity nationwide., Lumifi reacquired Datashield from ADT in a transaction the company later described as $30 million., The company acquired Castra for a reported $14 million in 2023.

## Products & services

- **Managed Detection and Response** — 24/7/365 monitoring, threat hunting, investigation, containment and response across SIEM, EDR/XDR, NDR, cloud and identity systems.
- **ShieldVision** — A proprietary multi-tenant security operations platform for telemetry correlation, custom detections, investigation workflows, orchestration, reporting and automated response.
- **SOC-as-a-Service** — Access to a U.S.-based security operations team and supporting tooling without building an internal round-the-clock SOC.
- **Incident Response** — Preparation, investigation, containment and recovery support, expanded through the Critical Insight acquisition.
- **Consulting and Professional Services** — Assessments, penetration testing, virtual CISO services, compliance support, security awareness training and program development.
- **Digital Risk Management** — Monitoring for dark-web exposure, spoofed domains, leaked credentials and risks to executives or brands.

## Achievements

- ADT acquired Datashield in 2017 and used it to launch ADT Cybersecurity nationwide.
- Lumifi reacquired Datashield from ADT in a transaction the company later described as $30 million.
- The company acquired Castra for a reported $14 million in 2023.
- The Netsurion acquisition added more than 400 customers in 2024.
- The Critical Insight acquisition added more than 200 customers and expanded Lumifi to 125 employees in 2024.
- Lumifi ranked No. 25 on the 2026 Inc. Regionals Southwest list with 245% two-year growth.
- ShieldVision's 2024 materials described more than 1,000 prebuilt searches, response flows and reports.

## Latest updates

- **2026-04** — Ranked No. 25 on the Inc. Regionals Southwest list; Inc. reported 245% two-year growth.
- **2026-02** — Announced a joint IT/OT managed detection and response partnership with NetWitness.
- **2026-02** — Entered a contract with Vizient to broaden healthcare organizations' access to Lumifi services.
- **2025-09** — Became the official cybersecurity partner of the Arizona Cardinals in a multi-year deal.
- **2025-04** — Released ShieldVision enhancements focused on faster incident response and analyst efficiency.

## Links

- Website: https://www.lumificyber.com
- LinkedIn: https://www.linkedin.com/company/lumifi-cyber
- YouTube: https://www.youtube.com/@Lumificyber
- Facebook: https://facebook.com/lumificyber/

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Profile page: https://yespress.io/lumifi
Published by YesPress — https://yespress.io
Last updated: 2026-08-22