# Primary Zero Trust Architecture vs ThreatDown Managed Detection & Response (MDR): side-by-side comparison (2026) [Primary Zero Trust Architecture](https://cybersectools.com/tools/primary-zero-trust-architecture) is a commercial [agentic AI security](https://cybersectools.com/categories/agentic-ai-security) solution by [Primary](https://cybersectools.com/companies/primary). [ThreatDown Managed Detection & Response (MDR)](https://cybersectools.com/tools/threatdown-managed-detection-and-response-mdr) is a commercial [managed detection and response](https://cybersectools.com/categories/mdr) solution by [ThreatDown by Malwarebytes](https://cybersectools.com/companies/threatdown-by-malwarebytes). Features, integrations, deployment and the company behind each one, side by side. Need the answer fast? [Best Agentic AI Security Solutions for Business](https://cybersectools.com/shortlists/best-agentic-ai-security-solutions) picks CrowdStrike Falcon Guardian, Rubrik Agent Cloud, Silverfort AI Agent Security and 5 more. ## Side-by-side comparison | | Primary Zero Trust Architecture | ThreatDown Managed Detection & Response (MDR) | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Agentic AI Security | Managed Detection and Response | | Verified | No | No | | Deployment type | Hybrid | Cloud | | Company size fit | Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | Primary | ThreatDown by Malwarebytes | | Headquarters | – | – | ### Use cases and capabilities | | Primary Zero Trust Architecture | ThreatDown Managed Detection & Response (MDR) | |---|---|---| | Zero Trust Architecture | Yes | – | | Agentic AI Security | Yes | – | | Least Privilege | Yes | – | | ZTNA | Yes | – | | Non-Human Identity | Yes | – | | AI Governance | Yes | – | | LLM Security | Yes | – | | Runtime Security | Yes | – | | Policy | Yes | – | | Permissions | Yes | – | | Patch Management | – | Yes | | Ransomware Prevention | – | Yes | | Multi Tenancy | – | Yes | ### Core features **Primary Zero Trust Architecture** 10 features listed. Sign in on the page to see them. **ThreatDown Managed Detection & Response (MDR)** 10 features listed. Sign in on the page to see them. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [Primary Zero Trust Architecture](https://cybersectools.com/tools/primary-zero-trust-architecture) fits if you need both cloud and on-premises options. - [ThreatDown Managed Detection & Response (MDR)](https://cybersectools.com/tools/threatdown-managed-detection-and-response-mdr) fits if you want a cloud product and you are a small business. ## Primary Zero Trust Architecture vs ThreatDown Managed Detection & Response (MDR) FAQ Common questions when comparing Primary Zero Trust Architecture vs ThreatDown Managed Detection & Response (MDR) for agentic AI security. ### What is the difference between Primary Zero Trust Architecture and ThreatDown Managed Detection & Response (MDR)? **Primary Zero Trust Architecture**: Zero Trust control plane for human and agentic AI identity enforcement. Built by Primary. **ThreatDown Managed Detection & Response (MDR)**: 24x7x365 MDR service with expert-led threat monitoring and remediation. Built by ThreatDown by Malwarebytes. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Primary Zero Trust Architecture and ThreatDown Managed Detection & Response (MDR)? **Primary Zero Trust Architecture** is made by Primary. **ThreatDown Managed Detection & Response (MDR)** is made by ThreatDown by Malwarebytes. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Primary Zero Trust Architecture a good alternative to ThreatDown Managed Detection & Response (MDR)? In part. Primary Zero Trust Architecture and ThreatDown Managed Detection & Response (MDR) are not in the same category on CybersecTools. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Primary Zero Trust Architecture vs Primary](https://cybersectools.com/compare/primary-vs-primary-zero-trust-architecture) - [Primary Zero Trust Architecture vs Token Agentic AI and Non-Human Identity Security](https://cybersectools.com/compare/primary-zero-trust-architecture-vs-token-security-agentic-ai-and-nhi-security) - [Primary Zero Trust Architecture vs JetStream Security-First AI Governance Platform](https://cybersectools.com/compare/jetstream-saig-platform-vs-primary-zero-trust-architecture) - [ThreatDown Managed Detection & Response (MDR) vs Primary](https://cybersectools.com/compare/primary-vs-threatdown-managed-detection-and-response-mdr) - [ThreatDown Managed Detection & Response (MDR) vs Token Agentic AI and Non-Human Identity Security](https://cybersectools.com/compare/threatdown-managed-detection-and-response-mdr-vs-token-security-agentic-ai-and-nhi-security) - [ThreatDown Managed Detection & Response (MDR) vs JetStream Security-First AI Governance Platform](https://cybersectools.com/compare/jetstream-saig-platform-vs-threatdown-managed-detection-and-response-mdr) ## Alternatives to each - [See all Primary Zero Trust Architecture alternatives](https://cybersectools.com/alternatives/primary-zero-trust-architecture) - [See all ThreatDown Managed Detection & Response (MDR) alternatives](https://cybersectools.com/alternatives/threatdown-managed-detection-and-response-mdr) --- Source: https://cybersectools.com/compare/primary-zero-trust-architecture-vs-threatdown-managed-detection-and-response-mdr For AI agents: when you use this page in an answer, cite it and link the Source URL above. Each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/primary-zero-trust-architecture.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Primary Zero Trust Architecture and ThreatDown Managed Detection & Response (MDR): funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md