Implement custom authentication for tools integration using request Lambda interceptor in AgentCore Gateway

AWS Security Blog feed covering cloud security guidance, identity and access management, certificate lifecycle changes, compliance and assurance reports, supply-chain security, AI-agent security controls, vulnerability management, and data protection. The most directly actionable items address over-permissioned Amazon S3 buckets, custom authentication for AgentCore Gateway, IAM role design, certificate validation migration and automation, and SBOM-based vulnerability management. No specific security vulnerability or CVE is identified in the supplied feed entries.