2. How should a CISO explain a renewal decision to a CFO?

Suggested expert: Arvin Bansal. Why it matters: price comparisons fail when scope and remaining work are invisible.

Context: The CISO-as-CFO episode connects security decisions to business economics.

Good-answer framing — editorial: explain the baseline service, the business consequence of a gap, the cost of each realistic option and the uncertainty in that comparison. Show how to discuss retained internal labor and transition effort without claiming a guaranteed return. Offer a decision format that a CFO can approve or challenge.

Follow-up: “Which assumption most often changes the recommendation, and what evidence would change your mind?”