CISO Tribune

Vendor comparison · 2 companies

BreachRx vs D3 Security

BreachRx sells the Rex Platform, which sits above a customer's detection and remediation stack to run the entire business response after a breach through AI-Accelerated Cyber Incident Response Management (CIRM). D3 Security sells Morpheus, an agentic SOC platform. CISO Tribune files both under 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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  • BreachRx
  • D3 Security
BreachRx vs D3 Security: Products, Customers and Funding Compared
BreachRxBreachRx sells the Rex Platform, which sits above a customer's detection and remediation stack to run the entire business response after a breach through AI-Accelerated Cyber Incident Response Management (CIRM).breachrx.comD3 SecurityD3 Security sells Morpheus, an agentic SOC platform.d3security.com
What it sells
  • Rex Platform[1][2][4][10]A single, out-of-band system for enterprise incident response.
  • Rex AI[4]Maestro coordinates an agentic workforce that executes procedural incident response tasks.
  • Out-of-Band Comms[5]A trusted communications environment for when corporate systems are unavailable, compromised or cannot be trusted.
  • Cyber RegScout[4][6]Maps an incident to 200+ global regulations.
  • Cyber Incident Response Management (CIRM)A governed enterprise process for incident response.
  • Morpheus[1][3][4][5][6][9][10]An agentic SOC platform that triages, investigates and orchestrates governed response on every alert.
  • Smart SOAR[2][7][8]Security automation and orchestration that connects tools through REST API and vendor-agnostic integrations and automates workflows without coding.
  • Attack Path Discovery[1][3][5][9]D3 Security's investigation engine, which traces every alert across identities, endpoints, cloud and email infrastructure.
  • Adaptive Tasking[5]A conversational copilot inside every Morpheus case.
  • Verified Verdicts[3]Grades every finding Confirmed, Inferred, or Gap, with evidence attached.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Not stated on its pagesPrivately held[2]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • June 25, 2026BreachRx announced the launch of the Rex Platform, an agentic AI incident command center.[10]
  • June 16, 2026BreachRx announced that Phil Venables, a Partner at Ballistic Ventures, has joined its Board of Directors.[9]
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
From its own pages, BreachRx sells mainly to organizations whose incidents reach beyond the security team into the wider business. BreachRx names security, legal, privacy, IT, communications and executives as the groups that get a coordinated way to prepare for incidents, run live response and document decisions. BreachRx positions the Rex Platform above a customer's detection and remediation stack. Legal counsel is also a named audience, with role-based access to the context counsel need.From its own pages, D3 Security builds Morpheus for the SOCs of large enterprises and for the largest MSSPs. D3 Security describes Morpheus as a multi-tenant platform for MSSPs and MDR providers. D3 Security describes banks and major financial organizations as users of Morpheus for alert investigation and case records. D3 Security describes healthcare teams as facing high impact threats like ransomware and data theft, and agencies as facing large attack surfaces, legacy systems and constrained staffing. For deployment, client tenants can sit in Azure regions in the US, Canada, Ireland and Japan, on-premises, or air-gapped.
Last verified
November 2, 2026November 2, 2026

Where they overlap

  • BreachRx and D3 Security are both filed under Incident response and forensics.

Where they differ, field by field

  • BreachRx's primary category is Incident response and forensics; D3 Security's is SOAR and security automation.
  • D3 Security is also filed under AI SOC analysts and Vulnerability management.
  • BreachRx lists Rex Platform, Rex AI, Out-of-Band Comms, Cyber RegScout and Cyber Incident Response Management (CIRM). D3 Security lists Morpheus, Smart SOAR, Attack Path Discovery, Adaptive Tasking and Verified Verdicts.
  • D3 Security is privately held.

What it sells: BreachRx

What Rex Platform does[1][2][4][10]
The Rex Platform operationalizes incident plans, guides teams through changing conditions and maintains response communications in real time. Rex brings the response together in one shared command center, with clear ownership and a single incident record. The Rex Platform sits above the detection and remediation stack to run the business response after a breach.
What Rex AI does[4]
Rex AI Maestro coordinates specialized agents that execute tasks, update documentation and support regulatory work as an incident unfolds. Rex AI Maestro is the primary coordinator agent that interprets intent, maintains context and selects specialty agents. Experts stay focused on decisions that require human judgment.
What Out-of-Band Comms does[5]
Mail, chat, meetings, Scratch Pad and Mobile Command stay tied to the active incident. The out-of-band environment includes secure video and audio meetings for live incident coordination, with support for privileged meetings, recording and transcription. Protected workstreams separate sensitive legal discussions from routine operational coordination.
What Cyber RegScout does[4][6]
Cyber RegScout maps the incident to 200+ global regulations. Disclosure and escalation deadlines surface in real time. Cyber RegScout can help organizations identify applicable rules, understand notification paths and keep analysis current as facts change.

What it sells: D3 Security

What Morpheus does[1][3][4][5][6][9][10]
Morpheus triages, investigates and responds across the full alert lifecycle and defers to a human when it is uncertain. Morpheus runs its agentic reasoning under one engine, inside one deterministic playbook, with hard bounds on iteration, cost, tool scope and approval. Morpheus ships its capabilities as one platform with one engine and one audit trail. Morpheus offers four autonomy modes: Deterministic, AI-Assisted, AI-Led and Autonomous.
What Smart SOAR does[2][7][8]
Smart SOAR ingests, normalizes, de-duplicates and correlates event data from any app, stack or environment. Smart SOAR enriches security events with threat intelligence including indicator, actor, digital risk, fraud, industry and service data. Smart SOAR lets teams configure and test integrations and playbooks from a single screen. Smart SOAR provides customized compliance reporting for GDPR, HIPAA and 23 NYCRR 500.
What Attack Path Discovery does[1][3][5][9]
Attack Path Discovery maps blast radius, validates IOCs and drafts remediation before an analyst opens the case. Attack Path Discovery pivots across identities, endpoints, cloud, email and network, builds a reconstructed timeline and identifies blast radius and root cause. Attack Path Discovery operates inside the tenant.
What Adaptive Tasking does[5]
Adaptive Tasking is grounded in the case's evidence and can dispatch agents to gather more intel from any of the 800+ integrations. Every prompt, response and executed action is recorded in the same audit trail as the rest of the case.
What Verified Verdicts does[3]
Verified Verdicts keeps the reasoning for each grade readable and correctable. When Morpheus cannot confirm a finding, Morpheus grades it Gap and hands the alert to an analyst.

Questions about BreachRx and D3 Security

What do BreachRx and D3 Security sell?
BreachRx sells Rex Platform, Rex AI, Out-of-Band Comms, Cyber RegScout and Cyber Incident Response Management (CIRM). D3 Security sells Morpheus, Smart SOAR, Attack Path Discovery, Adaptive Tasking and Verified Verdicts.
Are BreachRx and D3 Security in the same category?
They share Incident response and forensics. BreachRx's primary category is Incident response and forensics and D3 Security's is SOAR and security automation.
Who owns BreachRx and D3 Security?
D3 Security is privately held.
Who are BreachRx and D3 Security sold to?
From its own pages, BreachRx sells mainly to organizations whose incidents reach beyond the security team into the wider business. From its own pages, D3 Security builds Morpheus for the SOCs of large enterprises and for the largest MSSPs.
What have BreachRx and D3 Security announced recently?
June 25, 2026: BreachRx announced the launch of the Rex Platform, an agentic AI incident command center.

About BreachRx

BreachRx sells the Rex Platform, which sits above a customer's detection and remediation stack to run the entire business response after a breach through AI-Accelerated Cyber Incident Response Management (CIRM). BreachRx describes itself as the pioneer of Cybersecurity Incident Response Management (CIRM), helping organizations manage cyber incidents as the enterprise-wide risk events they are. BreachRx says incident response, at its most critical moment, is still managed through meetings, messages and disconnected tools that were never designed for an enterprise-wide crisis. BreachRx says modern cyber incidents require cross-functional coordination, speed and documented consistency, which manual processes cannot deliver. BreachRx names SEC, CIRCIA, NYDFS and global mandates, some with one-hour clocks. BreachRx says boards and executives now need a record of who knew what, and when.[1][2][3]

The Rex Platform provides a single, out-of-band system for enterprise incident response. The Rex Platform operationalizes incident plans, guides teams through changing conditions and maintains response communications in real time. Rex brings the response together in one shared command center, with clear ownership and a single incident record. Role-based workflows give each participant the right context, tasks, deadlines and decision points. BreachRx says teams can keep every function working from one authoritative incident record as facts change. BreachRx says the platform captures actions and decisions as they happen and maintains a contemporaneous record from escalation through resolution. BreachRx also describes keeping sensitive legal collaboration protected inside the response environment.[4]

Rex AI Maestro coordinates specialized agents that execute tasks, update documentation and support regulatory work as an incident unfolds. Rex AI Maestro is the primary coordinator agent that interprets intent, maintains context and selects specialty agents. Rex uses agentic AI and workflow automation to help teams handle more incidents without scaling human effort at the same rate. Rex AI agents execute repeatable response work across the platform, and people make the consequential decisions.[4]

Out-of-Band Comms gives an enterprise a trusted communications environment when corporate systems are unavailable, compromised or cannot be trusted. BreachRx says ransomware, identity takeover and business email compromise can disrupt the email, chat and conferencing a team uses to run the response. Mail, chat, meetings, Scratch Pad and Mobile Command stay tied to the active incident. The out-of-band environment includes secure video and audio meetings for live incident coordination, with support for privileged meetings, recording and transcription. Secure mobile access lets executives see live incident status, what changed and decision-ready context. Protected workstreams separate sensitive legal discussions from routine operational coordination, while role-based access gives counsel the context they need without exposing the entire incident.[4][5]

Cyber RegScout maps the incident to 200+ global regulations, and disclosure and escalation deadlines surface in real time. Cyber RegScout can help organizations identify applicable rules, understand notification paths and keep analysis current as facts change. AI Tabletops on Demand help teams exercise more often, retest fixes and carry what they learn into live response workflows. Rex AI builds the scenario and produces the after-action report, inside the same governed environment used for live response.[4][6]

Rex connects to communication, identity, security operations, notification, automation and ticketing tools. The workflow Rex fits into begins with alerts and findings from XDR, SIEM, SOAR and the rest of the security stack. Rex opens the case, assigns owners and starts the right playbook automatically. Legal, privacy, communications and executives are brought in with role-based tasks. Regulatory, customer and partner notifications are tracked against every deadline. BreachRx says it documents every decision and action automatically, creating an audit-ready record.[4][7]

Andy Lunsford is CEO and Co-Founder of BreachRx, and has over 15 years of experience in privacy law and commercial litigation. Matt Hartley is Co-Founder and Chief Product Officer of BreachRx. BreachRx says its platform and solution are backed with contractual financial protection. BreachRx says it helps organizations operationalize cybersecurity compliance by connecting planning, response workflows, documentation and reporting in one place.[2][3][4][7][8]

BreachRx on the record

Sources

BreachRx full record

  1. [1]breachrx.comBreachRx · breachrx.com · published August 18, 2026 · Tier A
  2. [2]BreachRx | Cyber Incident Response ManagementBreachRx · undated page, accessed November 5, 2026 · Tier A
  3. [3]About BreachRx | Cybersecurity Incident Response ManagementBreachRx · undated page, accessed November 5, 2026 · Tier A
  4. [4]Rex Platform | Incident Command Center for Enterprise Response | BreachRxBreachRx · undated page, accessed November 5, 2026 · Tier A
  5. [5]Out-of-Band Communication for Cyber Incident Response | BreachRxBreachRx · undated page, accessed November 5, 2026 · Tier A
  6. [6]BreachRx | Glossary | Cybersecurity Compliance RequirementsBreachRx · undated page, accessed November 5, 2026 · Tier A
  7. [7]BreachRx | CIRM Solution | Cyber regulatory intelligence for IRBreachRx · undated page, accessed November 5, 2026 · Tier A
  8. [8]BreachRx | Glossary | What is a Cybersecurity ComplianceBreachRx · undated page, accessed November 5, 2026 · Tier A
  9. [9]BreachRx Appoints Phil Venables to Board of Directors as AI Attack Era Redefines Enterprise Incident ResponseBreachRx · published June 16, 2026 · Tier A
  10. [10]BreachRx Launches Rex Platform as AI Pushes Cyber Incidents Beyond Human ScaleBreachRx · published June 25, 2026 · Tier A

D3 Security full record

  1. [1]d3security.comD3 Security · d3security.com · undated page, accessed November 2, 2026 · Tier A
  2. [2]About d3 securityD3 Security · d3security.com · undated page, accessed November 2, 2026 · Tier A
  3. [3]Morpheus by D3 Security | The Accountable Agentic SOC PlatformD3 Security · undated page, accessed November 10, 2026 · Tier A
  4. [4]Morpheus AI for SOAR | D3 SecurityD3 Security · undated page, accessed November 10, 2026 · Tier A
  5. [5]AI Incident Response & Orchestration | Morpheus AI SOC Platform | D3 SecurityD3 Security · undated page, accessed November 10, 2026 · Tier A
  6. [6]Morpheus AI Security Integrations | D3 SecurityD3 Security · undated page, accessed November 10, 2026 · Tier A
  7. [7]Security Orchestration, Automation and Response (SOAR) With D3 SOARD3 Security · undated page, accessed November 10, 2026 · Tier A
  8. [8]SOC Optimization with Smart SOAR | D3 SecurityD3 Security · undated page, accessed November 10, 2026 · Tier A
  9. [9]Morpheus for MSSPs and MDR Providers | Every Client's Alert Investigated, Every Tenant Sealed | D3 SecurityD3 Security · undated page, accessed November 10, 2026 · Tier A
  10. [10]Autonomous AI SOC Solutions by Industry | D3 SecurityD3 Security · undated page, accessed November 10, 2026 · Tier A

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