AWS has published guidance on securing multi-tenant AI agent deployments using Amazon Bedrock AgentCore resource-based policies. SaaS providers can use these controls to isolate tenants, enforce VPC-only traffic for regulated workloads, and manage cross-account access — all from a shared infrastructure. This matters because poorly isolated multi-tenant AI systems can expose one customer’s data or capabilities to another.

Architect’s Take: If you are building or reviewing a multi-tenant SaaS platform on Bedrock AgentCore, implement resource-based policies now to enforce tenant isolation boundaries — pay particular attention to cross-account trust conditions and VPC endpoint restrictions to meet regulatory obligations such as UK GDPR and financial sector requirements.

Original advisory: Secure multi-tenant AI agents with Amazon Bedrock AgentCore resource-based policies