Lean security teams enter 2026 facing compressed ransomware timelines, identity-driven attacks, rising third-party risk, and increasing financial impact per breach. Yet many SIEM programs still depend on manual correlation, excessive data volume, and unpredictable retention costs. The 2026 State of SIEM Report delivers a data-backed analysis of today’s top security threats and provides practical, mid-market guidance for selecting and operationalizing a modern SIEM.