Product security features: step-up authentication for sensitive operations, SCIM/secure SAML, OIDC federated SSO, OAuth for APIs and third-party apps, secrets injection, customer data masking, field-level encryption, BYOK, DNSSEC, header hardening (CSP/X-Frame), IMDSv2, egress proxy enforcement, hardcoded-secret cleanup, IAM role right-sizing, SIEM audit-log integration, and SSPM tool integration. Authoritative, current knowledge of application security anchored in OWASP frameworks - Web Top 10, API Security Top 10, ASVS, the LLM Top 10, and the newer OWASP Agentic AI Top 10 (the real-world attack classes targeting autonomous agents) - plus secure design patterns, authentication/authorization (OAuth 2.0, OIDC, SAML, SCIM), session management, and cryptography.