November 12, 2025

Every IT manager knows downtime is expensive. Yet when continuity budgets come under scrutiny, explaining exactly how expensive often means scrambling for rough estimates or citing worst-case headlines. By the time you’ve built a credible financial model for your board, the discussion has moved on. This article provides a reusable framework—a downtime cost calculator for EU organizations—that lets you quantify the real business impact of RTO and RPO gaps, calibrate your continuity investment, and present it in language the CFO understands.

When ransomware strikes a Microsoft 365 tenant, every minute counts. Email stops flowing, Teams channels go dark, and SharePoint files become inaccessible. The difference between a controlled recovery and a catastrophic loss often comes down to having a deterministic incident runbook M365 response plan that specifies who does what, in what order, with clear time-boxed outcomes.