A lot of teams think production readiness is mostly about uptime, performance, deployment speed, and bug rates. That is incomplete. As of Vercel's April 21, 2026 security bulletin update , the company says attackers gained unauthorized access to certain internal systems, impacted a limited subset of customers, and traced the incident to a compromise of Context.ai, a third-party AI tool used by a Vercel employee. Vercel says the attack path involved the employee's Google Workspace account and exposure of environment variables that were not marked as sensitive. That is why this is not just a "Vercel got breached" story. It is a reminder that production readiness also includes workflow security: how your team connects third-party tools, how OAuth access is handled, how credentials are stored, and how much internal access can be exposed when one trusted integration goes wrong.…