COBOL Migration: A CTO's Risk-Balanced Playbook

Metric Value Lines of COBOL still running globally 220 billion ATM transactions still processed by COBOL 84% Average cost of a failed COBOL migration $2.5M COBOL migration is the core decision for any data-heavy application: you either prioritize real-time concurrency (Node.js) or deep data processing (Django). Your bank's wire transfer just processed through COBOL. So did that insurance claim you filed last week. Hell, the IRS is still running systems written when Nixon was president. We're tal