# McKinsey: 32% Build Software Instead of Buying It — What Developers Must Know > Source: > Published: 2026-09-11 05:07:41+00:00 One-third of companies skipped a software purchase this year because an AI coding agent could build the equivalent in-house. That is the headline from McKinsey’s State of AI 2026 survey — and it is the most consequential finding for developers this week. Not because the 32% figure is impressive, but because of what the report buries: a 44% AI code security failure rate, a 40% agentic project cancellation forecast, and a run-cost trap most teams will not see coming until year two. What McKinsey Actually Measured The survey covered 1,719 organizations across 97 countries and asked whether they had decided […] The post