They thought the breach would come from the outside. It didn’t. It came from a trusted vendor inside their supply chain.
Eba Outsourcing Guidelines for platform security exist to stop exactly this. If code leaves your direct control, security risks multiply. Sensitive APIs, admin endpoints, and key infrastructure face new threats. Without strict security policies for outsourced teams, you are trusting blind. That’s not security. That’s gambling.
The first rule: control access. Only grant outsourced partners the minimum they need to work. Use isolated environments that prevent exposure to production data. Define permissions at the API gateway. Require multi-factor authentication for all accounts. Monitor every request. Every log entry is proof—of work and of safety.
The second rule: protect data in transit and at rest. All communication between outsourced systems and core infrastructure must use encrypted channels. Enforce TLS. Use secrets vaults instead of scattered config files. Replace static keys with short-lived tokens. If data leaves your network, it must be unreadable to anyone without explicit clearance.
The third rule: test and audit. Automated security tests should run with every commit from outsourced teams. Audit code for injected dependencies. Scan for vulnerable packages. Run penetration tests on staging environments before release. Use static analysis to catch risks before they reach production.