How do you protect IP and confidentiality in enterprise engagements?

Multiple layers. Mutual NDAs signed before any project discussion. Master service agreements with full IP transfer clauses, indemnification, and audit rights. ISO 27001 certified operational substrate covering access control, secret management, code copy prevention, and audit trail. Background checks on engineering staff. Sub processor approval workflow for any external services. Where the engagement involves regulated data (PHI, PCI, GDPR special category) we operate under additional controls including DPAs, SCCs for international transfers, and data minimisation by design.