# Kaspersky Next XDR Optimum vs Microsoft Defender XDR: side-by-side comparison (2026) [Kaspersky Next XDR Optimum](https://cybersectools.com/tools/kaspersky-next-xdr-optimum) is a commercial [extended detection and response](https://cybersectools.com/categories/xdr) solution by [Kaspersky](https://cybersectools.com/companies/kaspersky). [Microsoft Defender XDR](https://cybersectools.com/tools/microsoft-defender-xdr) is a commercial [extended detection and response](https://cybersectools.com/categories/xdr) solution by [Microsoft](https://cybersectools.com/companies/microsoft). Features, integrations, deployment and the company behind each one, side by side. ## Side-by-side comparison | | Kaspersky Next XDR Optimum | Microsoft Defender XDR | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Extended Detection and Response | Extended Detection and Response | | Verified | No | No | | Deployment type | Cloud | Cloud | | Company size fit | SMB, Mid-Market | SMB, Mid-Market, Enterprise | | Company | Kaspersky | Microsoft | | Headquarters | – | – | ### Use cases and capabilities | | Kaspersky Next XDR Optimum | Microsoft Defender XDR | |---|---|---| | Ransomware Prevention | Yes | – | | Anomaly Detection | Yes | – | | Active Directory | Yes | – | | Microsoft 365 | Yes | – | | Patch Management | Yes | – | | Security Hardening | Yes | – | | Sandbox | Yes | – | | Alerting | Yes | – | | Cloud Native | Yes | – | | Vulnerability | Yes | – | | MITRE ATT&CK | – | Yes | ### Core features **Kaspersky Next XDR Optimum** 10 features listed. Sign in on the page to see them. **Microsoft Defender XDR** 10 features listed. Sign in on the page to see them. ### Integrations **Kaspersky Next XDR Optimum** 3 integrations listed. Sign in on the page to see them. **Microsoft Defender XDR** 3 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. - [Microsoft Defender XDR](https://cybersectools.com/tools/microsoft-defender-xdr) fits if you are an enterprise. ## Kaspersky Next XDR Optimum vs Microsoft Defender XDR FAQ Common questions when comparing Kaspersky Next XDR Optimum vs Microsoft Defender XDR for extended detection and response. ### What is the difference between Kaspersky Next XDR Optimum and Microsoft Defender XDR? **Kaspersky Next XDR Optimum**: XDR platform for SMBs with endpoint protection, cloud sandbox & AD integration, built by Kaspersky. **Microsoft Defender XDR**: XDR solution for unified detection and response across Microsoft 365, built by Microsoft. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Kaspersky Next XDR Optimum and Microsoft Defender XDR? **Kaspersky Next XDR Optimum** is made by Kaspersky. **Microsoft Defender XDR** 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 Kaspersky Next XDR Optimum a good alternative to Microsoft Defender XDR? Often, yes. Kaspersky Next XDR Optimum and Microsoft Defender XDR are both Extended Detection and Response products. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Kaspersky Next XDR Optimum vs ArmorPoint XDR](https://cybersectools.com/compare/armorpoint-xdr-vs-kaspersky-next-xdr-optimum) - [Kaspersky Next XDR Optimum vs Trend Micro Vision One](https://cybersectools.com/compare/kaspersky-next-xdr-optimum-vs-trend-micro-vision-one) - [Kaspersky Next XDR Optimum vs Bitdefender GravityZone Platform](https://cybersectools.com/compare/bitdefender-gravityzone-platform-vs-kaspersky-next-xdr-optimum) - [Microsoft Defender XDR vs ArmorPoint XDR](https://cybersectools.com/compare/armorpoint-xdr-vs-microsoft-defender-xdr) - [Microsoft Defender XDR vs Trend Micro Vision One](https://cybersectools.com/compare/microsoft-defender-xdr-vs-trend-micro-vision-one) - [Microsoft Defender XDR vs Bitdefender GravityZone Platform](https://cybersectools.com/compare/bitdefender-gravityzone-platform-vs-microsoft-defender-xdr) ## Alternatives to each - [See all Kaspersky Next XDR Optimum alternatives](https://cybersectools.com/alternatives/kaspersky-next-xdr-optimum) - [See all Microsoft Defender XDR alternatives](https://cybersectools.com/alternatives/microsoft-defender-xdr) --- Source: https://cybersectools.com/compare/kaspersky-next-xdr-optimum-vs-microsoft-defender-xdr For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/kaspersky-next-xdr-optimum.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Kaspersky Next XDR Optimum and Microsoft Defender XDR: 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