Why Europe's Procurement Teams Are Asking for Source Code

For most of the last decade, enterprise security procurement followed a simple pattern: the vendor produces a SOC 2 report , a penetration test summary, and a list of certifications, and the buyer takes it on faith that the software does what the vendor says. In Europe in 2026, that pattern is breaking down — not because compliance reports stopped mattering, but because “trust us” is no longer a sufficient answer to a procurement team running real vendor due diligence.