~/talk

Mitigate OWASP Top 10 for LLM risks with a Zero Trust approach

Talkat AWS re:Inforce 2024 · 2024-06-10..06-12· [security, ai-assisted-development]
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A patient‑info assistant prototype uses Amazon Bedrock agents, API Gateway, Lambda, DynamoDB, KMS, PrivateLink, VPC Lattice, Verified Access and GuardDuty but initial role tags in prompts are bypassed by prompt injection so the LLM leaks records. Replacing in‑prompt auth with immutable session attributes passed to the agent and enforcing access with Verified Permissions in the Lambda removes excessive agency and prevents unauthorized data retrieval. The zero trust pattern proves effective: traditional IAM, least‑privilege service roles and data‑layer authorization stop the disclosure.

AI-written summary · about

  1. 0:00Understanding LLM threats
  2. 5:42Patient information scenario
  3. 7:51Prompt engineering limitations
  4. 11:36Implementing zero trust
  5. 18:08Final takeaways and defense
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