When sensitive data flows through your systems, every byte is a target. Personal Identifiable Information (PII) — names, addresses, credit card numbers — can be exposed by sloppy encryption or weak SSL/TLS setups. OpenSSL is the open-source cryptography library that millions rely on to secure data in transit. But not every OpenSSL deployment protects PII the way it should.
Too many teams run outdated versions. Some disable strong ciphers for compatibility. Others skip certificate validation in dev and forget to restore it in prod. Each choice leaves attack surface. For PII, even one weak link invites compromise.
Proper OpenSSL configuration demands precision. Use AES-256-GCM or CHACHA20-POLY1305 for stream and block encryption. Enforce TLS 1.3 for modern clients while disabling obsolete protocols. Generate keys with secure entropy sources. Validate certificates every time. Audit your cipher suites against current NIST recommendations.