One of the most consequential decisions a Chief Information Security Officer (CISO) makes is whether to build an internal 24/7 Security Operations Center (SOC) or partner with a Managed Detection and Response (MDR) provider. Understanding the true Total Cost of Ownership (TCO) requires accounting for personnel turnover, toolchain licensing, and alert fatigue.
1. The Real Cost of a 24/7/365 Internal SOC
Operating a true around-the-clock internal security center requires a minimum of 8 to 12 full-time security analysts to cover three shifts, weekends, holidays, illness, and mandatory training:
- Personnel Costs: 8 analysts at an average total compensation of $135,000 equals over $1,080,000 annually. Adding a SOC manager and a detection engineer elevates base payroll beyond $1,400,000.
- Recruitment and Turnover: Cybersecurity analyst turnover averages 26% annually due to nocturnal shifts and alert fatigue, costing roughly $40,000 per replacement in recruiting and onboarding.
- SIEM & Tooling Licensing: Ingesting terabytes of daily event logs into modern SIEM/data lake platforms costs $150,000 to $400,000 annually.
- Total Estimated Year 1 Cost: $1.7M – $2.4M.
2. The Co-Managed MDR Hybrid Model
For most mid-market and enterprise organizations below 10,000 employees, partnering with an MDR provider yields superior mean time to detect (MTTD) and mean time to respond (MTTR) at a fraction of the cost:
- Dedicated 24/7 eyes-on-glass monitoring across endpoints, identities, and cloud logs.
- Turnkey access to threat intelligence feeds and proprietary detection engineering.
- Predictable per-endpoint or per-user annual licensing averaging $60,000 to $250,000.
- Allows internal security staff to focus on strategic risk reduction and architecture.