# ID Agent Graphus vs Microsoft Defender for Office 365: side-by-side comparison (2026) [ID Agent Graphus](https://cybersectools.com/tools/id-agent-graphus) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [ID Agent](https://cybersectools.com/companies/id-agent). [Microsoft Defender for Office 365](https://cybersectools.com/tools/microsoft-defender-for-office-365) is a commercial [email security platforms](https://cybersectools.com/categories/email-security-platforms) solution by [Microsoft](https://cybersectools.com/companies/microsoft). Features, integrations, deployment and the company behind each one, side by side. ## Our take What our shortlists say about the one we picked. ### [Microsoft Defender for Office 365](https://cybersectools.com/tools/microsoft-defender-for-office-365) Best for: Teams running Microsoft 365 It is on the list because it is built into Microsoft 365, and many companies already own it through their license, so the buying question is often settled before you start. That makes it the natural first layer if you run Microsoft 365. Decide whether it covers your risk alone or needs a second product beside it, since it is built to work with other email security products. From [Best Email Security Solutions for Business](https://cybersectools.com/shortlists/best-email-security-platforms), Fall 2026. Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about). Need the answer fast? [Best Email Security Solutions for Business](https://cybersectools.com/shortlists/best-email-security-platforms) picks Proofpoint Core Email Protection, Microsoft Defender for Office 365, Mimecast Advanced Email Security and 4 more. ## Side-by-side comparison | | ID Agent Graphus | Microsoft Defender for Office 365 | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Email Security Platforms | Email Security Platforms | | Verified | No | No | | Deployment type | Cloud | Cloud | | Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | ID Agent | Microsoft | | Headquarters | – | – | ### Use cases and capabilities | | ID Agent Graphus | Microsoft Defender for Office 365 | |---|---|---| | Microsoft 365 | Yes | Yes | | Ransomware | Yes | – | | Zero Day | Yes | – | | Spam Prevention | Yes | – | ### Core features **ID Agent Graphus** 10 features listed. Sign in on the page to see them. **Microsoft Defender for Office 365** 10 features listed. Sign in on the page to see them. ### Integrations **ID Agent Graphus** 8 integrations listed. Sign in on the page to see them. **Microsoft Defender for Office 365** 4 integrations 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. - [ID Agent Graphus](https://cybersectools.com/tools/id-agent-graphus) fits if you are a startup. ## ID Agent Graphus vs Microsoft Defender for Office 365 FAQ Common questions when comparing ID Agent Graphus vs Microsoft Defender for Office 365 for email security platforms. ### What is the difference between ID Agent Graphus and Microsoft Defender for Office 365? **ID Agent Graphus**: AI-powered anti-phishing platform for Microsoft 365 & Google Workspace. Built by ID Agent. **Microsoft Defender for Office 365**: Email and collaboration security for Microsoft 365 environments. Built by Microsoft. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes ID Agent Graphus and Microsoft Defender for Office 365? **ID Agent Graphus** is made by ID Agent. **Microsoft Defender for Office 365** is made by Microsoft. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is ID Agent Graphus a good alternative to Microsoft Defender for Office 365? Often, yes. ID Agent Graphus and Microsoft Defender for Office 365 are both Email Security Platforms products, and both cover Microsoft 365. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [ID Agent Graphus vs SpamTitan for Office 365](https://cybersectools.com/compare/id-agent-graphus-vs-spamtitan-for-office-365) - [ID Agent Graphus vs ESET Cloud Office Security](https://cybersectools.com/compare/eset-cloud-office-security-vs-id-agent-graphus) - [ID Agent Graphus vs Bitdefender GravityZone Security for Exchange](https://cybersectools.com/compare/bitdefender-gravityzone-security-for-exchange-vs-id-agent-graphus) - [Microsoft Defender for Office 365 vs SpamTitan for Office 365](https://cybersectools.com/compare/microsoft-defender-for-office-365-vs-spamtitan-for-office-365) - [Microsoft Defender for Office 365 vs ESET Cloud Office Security](https://cybersectools.com/compare/eset-cloud-office-security-vs-microsoft-defender-for-office-365) - [Microsoft Defender for Office 365 vs Bitdefender GravityZone Security for Exchange](https://cybersectools.com/compare/bitdefender-gravityzone-security-for-exchange-vs-microsoft-defender-for-office-365) ## Alternatives to each - [See all ID Agent Graphus alternatives](https://cybersectools.com/alternatives/id-agent-graphus) - [See all Microsoft Defender for Office 365 alternatives](https://cybersectools.com/alternatives/microsoft-defender-for-office-365) --- Source: https://cybersectools.com/compare/id-agent-graphus-vs-microsoft-defender-for-office-365 For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/id-agent-graphus.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on ID Agent Graphus and Microsoft Defender for Office 365: 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