Microsoft Sentinel vs Elastic Security

Elastic Security and Microsoft Sentinel are both open source siem solutions. Elastic Security open-source SIEM and security analytics built on the ELK Stack, while Microsoft Sentinel cloud-native Azure SIEM with AI-powered detection and automated response. The best choice depends on your organization's size, technical requirements, and budget.

Choose Elastic Security if open-source core with no ingest-based pricing is your priority and teams wanting open-source flexibility with enterprise SIEM capabilities and no per-GB ingest pricing. Choose Microsoft Sentinel if deep native integration with Microsoft ecosystem matters most and microsoft-centric organizations wanting a cloud-native SIEM with deep M365 and Azure integration.

Elastic Security starts at Free (basic) / From $95/month (Cloud) / Enterprise custom (resource-based (nodes/capacity)). Microsoft Sentinel starts at From $2.46/GB ingested (pay-as-you-go) / Commitment tiers available (per-gb ingested (with commitment tier discounts)). As always, the sticker price only tells part of the story. Factor in add-ons, implementation costs, and what's actually included at each tier.

It depends on how deeply Microsoft Sentinel is embedded in your stack. Most teams run both in parallel for a few weeks before cutting over. Check whether Elastic Security supports importing your existing configs or policies. That's usually the biggest time sink.