# Fidelis Security vs Kaspersky Next XDR Optimum: side-by-side comparison (2026) [Fidelis Security](https://cybersectools.com/tools/fidelis-security) is a commercial [extended detection and response](https://cybersectools.com/categories/xdr) solution by [Fidelis Security](https://cybersectools.com/companies/fidelis-security). [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). Features, integrations, deployment and the company behind each one, side by side. ## Side-by-side comparison | | Fidelis Security | Kaspersky Next XDR Optimum | |---|---|---| | Pricing model | Commercial | Commercial | | Category | Extended Detection and Response | Extended Detection and Response | | Verified | No | No | | Deployment type | Hybrid | Cloud | | Company size fit | Mid-Market, Enterprise | SMB, Mid-Market | | Company | Fidelis Security | Kaspersky | | Headquarters | – | – | ### Use cases and capabilities | | Fidelis Security | Kaspersky Next XDR Optimum | |---|---|---| | Active Directory | Yes | Yes | | MITRE ATT&CK | Yes | – | | NDR | Yes | – | | Ransomware Prevention | – | Yes | | Anomaly Detection | – | Yes | | Microsoft 365 | – | Yes | | Patch Management | – | Yes | | Security Hardening | – | Yes | | Sandbox | – | Yes | | Alerting | – | Yes | | Cloud Native | – | Yes | | Vulnerability | – | Yes | ### Core features **Fidelis Security** 10 features listed. Sign in on the page to see them. **Kaspersky Next XDR Optimum** 10 features listed. Sign in on the page to see them. ### Integrations **Fidelis Security** 5 integrations listed. Sign in on the page to see them. **Kaspersky Next XDR Optimum** 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. - [Fidelis Security](https://cybersectools.com/tools/fidelis-security) fits if you need both cloud and on-premises options and you are an enterprise. - [Kaspersky Next XDR Optimum](https://cybersectools.com/tools/kaspersky-next-xdr-optimum) fits if you want a cloud product and you are a small business. ## Fidelis Security vs Kaspersky Next XDR Optimum FAQ Common questions when comparing Fidelis Security vs Kaspersky Next XDR Optimum for extended detection and response. ### What is the difference between Fidelis Security and Kaspersky Next XDR Optimum? **Fidelis Security**: XDR platform with NDR, EDR, deception, AD security, and CNAPP capabilities, built by Fidelis Security. **Kaspersky Next XDR Optimum**: XDR platform for SMBs with endpoint protection, cloud sandbox & AD integration, built by Kaspersky. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Fidelis Security and Kaspersky Next XDR Optimum? **Fidelis Security** is made by Fidelis Security. **Kaspersky Next XDR Optimum** is made by Kaspersky. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Fidelis Security a good alternative to Kaspersky Next XDR Optimum? Often, yes. Fidelis Security and Kaspersky Next XDR Optimum are both Extended Detection and Response products, and both cover Active Directory. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Fidelis Security vs Bitdefender GravityZone Platform](https://cybersectools.com/compare/bitdefender-gravityzone-platform-vs-fidelis-security) - [Fidelis Security vs ArmorPoint XDR](https://cybersectools.com/compare/armorpoint-xdr-vs-fidelis-security) - [Fidelis Security vs ThreatDefence Multi-Cloud Visibility](https://cybersectools.com/compare/fidelis-security-vs-threatdefence-multi-cloud-visibility) - [Kaspersky Next XDR Optimum vs Bitdefender GravityZone Platform](https://cybersectools.com/compare/bitdefender-gravityzone-platform-vs-kaspersky-next-xdr-optimum) - [Kaspersky Next XDR Optimum vs ArmorPoint XDR](https://cybersectools.com/compare/armorpoint-xdr-vs-kaspersky-next-xdr-optimum) - [Kaspersky Next XDR Optimum vs ThreatDefence Multi-Cloud Visibility](https://cybersectools.com/compare/kaspersky-next-xdr-optimum-vs-threatdefence-multi-cloud-visibility) ## Alternatives to each - [See all Fidelis Security alternatives](https://cybersectools.com/alternatives/fidelis-security) - [See all Kaspersky Next XDR Optimum alternatives](https://cybersectools.com/alternatives/kaspersky-next-xdr-optimum) --- Source: https://cybersectools.com/compare/fidelis-security-vs-kaspersky-next-xdr-optimum For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/fidelis-security.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Fidelis Security and Kaspersky Next XDR Optimum: 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