IT leaders are faced with impossibles choices of which one to defend next. This problem only gets worse over time: as their environment grows, their attack surface grows. This paper includes a breakdown of what impossible tradeoffs are and why they are problematic in cybersecurity. A comprehensive comparison of three options (in-house, co-managed, and outsourced) across three prototypical cybersecurity functions (Threat Intelligence, Proactive Preparedness, and Data Monitoring).”]