CISO Tribune

Vendor comparison · 2 companies

UltraViolet Cyber vs UnderDefense

UltraViolet Cyber sells security services that run offensive and defensive operations as one integrated team. UnderDefense sells UnderDefense MAXI, a security and compliance automation platform, and an MDR service in which security experts monitor, detect and respond to incidents. CISO Tribune files both under MDR and managed SOC and Penetration testing and red team services. 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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  • UltraViolet Cyber
  • UnderDefense
UltraViolet Cyber vs UnderDefense: Products, Customers and Funding Compared
UltraViolet CyberUltraViolet Cyber sells security services that run offensive and defensive operations as one integrated team.uvcyber.comUnderDefenseUnderDefense sells UnderDefense MAXI, a security and compliance automation platform, and an MDR service in which security experts monitor, detect and respond to incidents.underdefense.com
What it sells
  • Managed SOC[1][4][11]Named analysts monitor customer environments, investigate threats and take pre-authorized response actions.
  • UltraViolet Lens[7]A platform with an open architecture that ingests Digital Exhaust from telemetry devices.
  • UnderDefense MAXI[1][2][3][5][6]A security and compliance automation platform. UnderDefense MAXI integrates with SIEMs, firewalls and endpoint protection solutions.
  • UnderDefense Agentic AI SOC[4]AI agents investigate each alert. Analysts on shift 24/7 decide what happens next.
  • MDR[1][2][6]Security experts monitor, detect and respond to incidents.
  • Cloud-based SIEM[2]A cloud-based SIEM that collects, analyzes and responds to security events.
  • CIS AWS Benchmark assessment[8]A self-service assessment of AWS security.
Categories
Headquarters
McLean, United States[2]Not stated on its pages
Founded
2023[3][11]Not 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 pagesNot stated on its pages
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 10, 2026[10]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
UltraViolet Cyber describes delivery models that work with a customer's existing investments, team and stage of maturity. Engagements can be co-managed, fully outsourced or embedded with the customer team. UltraViolet Cyber's SIEM migration work includes a global provider of digital banking and lending solutions that decided to replace its legacy SIEM.UnderDefense MAXI integrates with a customer's security infrastructure, including SIEMs, firewalls and endpoint protection solutions. UnderDefense offers compliance templates to organizations working toward standards such as SOC2 and ISO 27001. UnderDefense MAXI provides executive-level reports for C-level readers.
Last verified
November 9, 2026October 26, 2026

Where they overlap

  • MDR and managed SOC is the primary category of both UltraViolet Cyber and UnderDefense; both are also filed under Penetration testing and red team services.

Where they differ, field by field

  • UnderDefense is also filed under Compliance automation and SOAR and security automation.
  • UltraViolet Cyber lists Managed SOC and UltraViolet Lens. UnderDefense lists UnderDefense MAXI, UnderDefense Agentic AI SOC, MDR, Cloud-based SIEM and CIS AWS Benchmark assessment.
  • UltraViolet Cyber is headquartered in McLean, United States.
  • UltraViolet Cyber was founded in 2023.

How they differ

CISO Tribune files UltraViolet Cyber under MDR and managed SOC and under penetration testing and red team services, with MDR and managed SOC as its primary category. CISO Tribune files UnderDefense under MDR and managed SOC, penetration testing and red team services, compliance automation, and SOAR and security automation, also with MDR and managed SOC as its primary category. UltraViolet Cyber is headquartered in McLean, United States, and was founded in 2023.

UltraViolet Cyber sells a Managed SOC in which named analysts monitor customer environments, investigate threats and take pre-authorized response actions. It also sells the UltraViolet Lens platform, and it describes engagements that can be co-managed, fully outsourced or embedded with the customer team. UnderDefense sells UnderDefense MAXI, a security and compliance automation platform that integrates with SIEMs, firewalls and endpoint protection solutions. UnderDefense also sells an Agentic AI SOC, in which AI agents investigate each alert and analysts on shift 24/7 decide what happens next, as well as a cloud-based SIEM and a self-service CIS AWS Benchmark assessment. UnderDefense MAXI includes pre-built compliance templates for standards such as SOC2 and ISO 27001.

UltraViolet Cyber says it supports 400+ Global 2000 enterprises and federal agencies, including DHS, FDIC and NIH. UltraViolet Cyber was founded by former U.S. intelligence community operators. UnderDefense says it serves organizations across five continents that represent multiple industries. UnderDefense, in cooperation with the Computer Emergency Response Team of Ukraine (CERT-UA), participated in a series of Incident Response cases.

What it sells: UltraViolet Cyber

What Managed SOC does[1][4][11]
UltraViolet Cyber assigns named analysts who monitor the customer environment, investigate threats, and take pre-authorized response actions. UltraViolet Cyber operates the customer security stack or provides a managed SIEM and SOAR platform.
What UltraViolet Lens does[7]
The UltraViolet Lens Platform has an open architecture that ingests terabytes of Digital Exhaust from various telemetry devices each day. UltraViolet Cyber provides 24/7/365 alert monitoring, triage and escalation by certified security engineers.

What it sells: UnderDefense

What UnderDefense MAXI does[1][2][3][5][6]
UnderDefense MAXI natively monitors endpoints, networks, users and decoy beacons. UnderDefense MAXI provides ready-to-use playbooks, AI-powered alert enrichment and notifications through Slack, Jira or a preferred tool. UnderDefense MAXI provides pre-built compliance templates for standards such as SOC2 and ISO 27001.
What UnderDefense Agentic AI SOC does[4]
UnderDefense Agentic AI SOC uses AI agents that investigate each alert. Analysts on shift 24/7 decide what happens next.
What CIS AWS Benchmark assessment does[8]
UnderDefense offers a self-service CIS AWS Benchmark assessment. The assessment covers evaluating the maturity of cloud security controls, identifying misconfigurations, providing detailed mitigation instructions and giving a summary table with a final CVSS v3.0 score.

Questions about UltraViolet Cyber and UnderDefense

What do UltraViolet Cyber and UnderDefense sell?
UltraViolet Cyber sells Managed SOC and UltraViolet Lens. UnderDefense sells UnderDefense MAXI, UnderDefense Agentic AI SOC, MDR, Cloud-based SIEM and CIS AWS Benchmark assessment.
Are UltraViolet Cyber and UnderDefense in the same category?
Yes. MDR and managed SOC is the primary category of both on CISO Tribune.
Where are UltraViolet Cyber and UnderDefense headquartered?
UltraViolet Cyber is headquartered in McLean, United States.
When were UltraViolet Cyber and UnderDefense founded?
UltraViolet Cyber was founded in 2023.
Who are UltraViolet Cyber and UnderDefense sold to?
UltraViolet Cyber describes delivery models that work with a customer's existing investments, team and stage of maturity. UnderDefense MAXI integrates with a customer's security infrastructure, including SIEMs, firewalls and endpoint protection solutions.

About UltraViolet Cyber

UltraViolet Cyber sells security services that run offensive and defensive operations as one integrated team.

UltraViolet Cyber was founded by former U.S. intelligence community operators. UltraViolet Cyber supports 400+ Global 2000 enterprises and federal agencies, including DHS, FDIC and NIH. UltraViolet Cyber supports organizations across financial services, healthcare and critical infrastructure, including U.S. federal agencies and Fortune 500 and Global 2000 companies. UltraViolet Cyber is vendor-agnostic across SIEM, EDR, and cloud, with analyst names on tickets and full client access to detections and log data.[12]

UltraViolet Cyber assigns named analysts who monitor the customer environment, investigate threats, and take pre-authorized response actions. UltraViolet Cyber operates the customer security stack or provides a managed SIEM and SOAR platform. Equinox is UltraViolet Cyber's proprietary detection engineering platform, built and operated by its Threat Intelligence & Detection Engineering (TIDE) team and included with Managed SOC. TIDE engineers review, backtest, and approve every recommendation before it deploys. UltraViolet Cyber builds threat hunting, purple team validation and Equinox detection engineering into its SOC service. UltraViolet Cyber analysts take the containment actions a customer has approved ahead of time, so response starts when an investigation confirms a threat.[1][7][8]

The UltraViolet Lens Platform has an open architecture that ingests terabytes of Digital Exhaust from various telemetry devices each day. UltraViolet Cyber provides 24/7/365 alert monitoring, triage and escalation by certified security engineers. UltraViolet Cyber runs proactive threat actor reconnaissance with industry focused campaigns to uncover threats. UltraViolet Cyber performs automated incident containment and response using preauthorized response procedures.[7]

UltraViolet Cyber offers a cloud native MDR service that combines a flexible deployment model with automation. UltraViolet Cyber converts every offensive discovery to detection-as-code. UltraViolet Cyber connects its experts with customer responder groups via Slack or Teams. UltraViolet Cyber offers fixed cost or user-based modeling. UltraViolet Cyber runs a Cohort program that provides security know-how for existing IT staff.[12]

UltraViolet Cyber runs objective-based adversary simulation across electronic, social, and physical domains. Named senior operators validate every finding with evidence and context. Each finding is scored for technical merit, exploitability, and business impact, with NIST-aligned documentation for audit, leadership, and board review. UltraViolet Cyber extends adversary-driven testing to AI and ML systems across models, pipelines, and supporting platforms. UltraViolet Cyber's Purple Teaming pairs its offensive operators with customer defensive teams in a live, collaborative simulation. UltraViolet Cyber emulates known threat actors to validate how a customer security stack detects and surfaces real signals. UltraViolet Cyber operators can work shoulder to shoulder with the customer team onsite for hands-on collaboration and knowledge transfer. UltraViolet Cyber runs purple team exercises with operators and proprietary tooling such as Voodoo.[10][13][17]

Solstice is UltraViolet's proprietary AI platform, trained on six years and 30,000+ of its own application penetration testing engagements. Solstice is embedded into every AppSec engagement, where it maps attack surfaces before kickoff ends, runs specialist agent tests in parallel with practitioners, surfaces coverage gaps in real time, and drafts evidence-linked reports on the last day of testing. Every finding references the specific HTTP request and response that proves it. Solstice powers UltraViolet's penetration testing services and is not sold as a tool or deployed in the customer environment.[14]

UltraViolet Cyber does not handle SIEM migration as a lift-and-shift exercise. UltraViolet Cyber supports legacy and modern SIEM platforms without bias, so customers can choose what fits their environment and strategy. UltraViolet Cyber's CTEM delivers continuous vulnerability scanning and risk prioritization across the IT environment. Those professionals operate directly in the customer SIEM, EDR, and security tools. Every candidate is discipline-matched to the customer environment, vetted for the role, and interviewed by the customer team before starting.[15][16][17]

UltraViolet Cyber provides security services across the AI lifecycle, combining strategy, threat modeling, adversarial testing, monitoring, and training to support secure AI adoption. UltraViolet Cyber maps attack paths across models, prompts, APIs, agents, and data pipelines to uncover risks such as prompt injection, model manipulation, and data leakage. UltraViolet Cyber runs adversarial testing that simulates how attackers target AI-enabled applications before they reach production. UltraViolet Cyber offers practitioner-led training that equips development and security teams to build and operate AI systems securely. The AISec Study benchmarks how organizations are building AI security programs, scored across 64 activities and 10 capabilities. UltraViolet Cyber helps organizations understand their current AI security maturity, benchmark it against peers, and receive a roadmap for strengthening governance, engineering controls, and runtime protection.[7][10][13][14][15][18]

UltraViolet Cyber on the record

Sources

UltraViolet Cyber full record

  1. [1]uvcyber.comUltraViolet Cyber · uvcyber.com · published September 25, 2026 · Tier A
  2. [2]Ultraviolet cyber launches to help organizations worldwide accelerate readiness and resilience against cybersecurity threats 301796166UltraViolet Cyber via PR Newswire · prnewswire.com · published April 13, 2023 · Tier A
  3. [3]Frequently asked questionsUltraViolet Cyber · uvcyber.com · undated page, accessed September 27, 2026 · Tier A
  4. [4]Managed SOC Services | 24/7 Managed SOC | UltraViolet CyberUltraViolet Cyber · undated page, accessed October 30, 2026 · Tier A
  5. [5]Unified Offensive and Defensive Security Solutions | UltraViolet CyberUltraViolet Cyber · undated page, accessed October 30, 2026 · Tier A
  6. [6]Application Security Testing Services | Web, API & Cloud App Security | UltraViolet CyberUltraViolet Cyber · undated page, accessed October 30, 2026 · Tier A
  7. [7]UltraViolet Lens Security Platform | Security Analytics & Detection Engineering | UltraViolet CyberUltraViolet Cyber · undated page, accessed October 30, 2026 · Tier A
  8. [8]Equinox: Detection Engineering Tool | UltraViolet CyberUltraViolet Cyber · undated page, accessed October 30, 2026 · Tier A
  9. [9]Red Team Engagements | Adversary Simulation & Advanced Threat Emulation | UltraViolet CyberUltraViolet Cyber · undated page, accessed October 30, 2026 · Tier A
  10. [10]VooDoo Red Team Toolkit | Cross-Platform Offensive Security Platform | UltraViolet CyberUltraViolet Cyber · undated page, accessed October 30, 2026 · Tier A
  11. [11]Cybersecurity Solutions | Managed SOC, MDR, Red Team & Pen Testing | UltraViolet CyberUltraViolet Cyber · undated page, accessed November 10, 2026 · Tier A
  12. [12]Managed Detection and Response (MDR) Services | Threat Detection & Response | UltraViolet CyberUltraViolet Cyber · undated page, accessed November 10, 2026 · Tier A
  13. [13]Purple Team Security Services | Offensive & Defensive Security Testing | UltraViolet CyberUltraViolet Cyber · undated page, accessed November 10, 2026 · Tier A
  14. [14]Solstice: AI-Augmented Penetration Testing | UltraViolet CyberUltraViolet Cyber · undated page, accessed November 10, 2026 · Tier A
  15. [15]SIEM Migration Services | Maintain Detection & Visibility | UltraViolet CyberUltraViolet Cyber · undated page, accessed November 10, 2026 · Tier A
  16. [16]Continuous Threat Exposure Management (CTEM) | Attack Surface Risk Monitoring | UltraViolet CyberUltraViolet Cyber · undated page, accessed November 10, 2026 · Tier A
  17. [17]Embedded Security Operations Experts & Support | Cybersecurity Staff AugmentationUltraViolet Cyber · undated page, accessed November 10, 2026 · Tier A
  18. [18]AI Security Services | AI Threat Monitoring & Red Teaming | UltraViolet CyberUltraViolet Cyber · undated page, accessed November 10, 2026 · Tier A

UnderDefense full record

  1. [1]underdefense.comUnderDefense · underdefense.com · undated page, accessed October 26, 2026 · Tier A
  2. [2]Compliance PricingUnderDefense · undated page, accessed November 10, 2026 · Tier A
  3. [3]Agentic AI SOC & Compliance Automation Platform | UnderDefenseUnderDefense · undated page, accessed November 10, 2026 · Tier A
  4. [4]Elastic Cloud Pricing 2026: Serverless, Hosted, and SIEMUnderDefense · undated page, accessed November 10, 2026 · Tier A
  5. [5]Cloudflare Pricing 2026: WAF, Zero Trust, and EnterpriseUnderDefense · undated page, accessed November 10, 2026 · Tier A
  6. [6]Palo Alto Networks Pricing 2026: Firewalls, SASE, and XDRUnderDefense · undated page, accessed November 10, 2026 · Tier A
  7. [7]2025 MXDR Pricing Guide: Choosing the Right MXDR providerUnderDefense · undated page, accessed November 10, 2026 · Tier A
  8. [8]Episode 4: Cyber Resilience 201 — AWS Cloud Security - UnderDefenseUnderDefense · undated page, accessed November 10, 2026 · Tier A
  9. [9]E-Mail Under Attack - UnderDefenseUnderDefense · undated page, accessed November 10, 2026 · Tier A
  10. [10]UnderDefense MAXI Reviews & Product DetailsG2 · undated page, accessed November 10, 2026 · Tier C

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