Migrating from MSP-Managed SIEM to Microsoft Sentinel: Seeking Advice on Log Management and Cost Efficiency

I'm reaching out for advice and recommendations on balancing visibility with cost when forwarding our logs to Sentinel SIEM. Our company is transitioning from a SIEM solution managed by our current MSP to Microsoft Sentinel. The current SIEM was implemented before my time and managed by our MSP, where I'm a glorified user with read-only permissions.

We're a Windows hybrid joined shop with around 230 endpoints/servers, alongside Fortinet/Cisco networking equipment, and on Microsoft E3. Considering an upgrade to include the …

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