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Home/Questions/Cloud/Tools/Securing AWS Lambda: IAM roles, VPC integration, and security measures?

Securing AWS Lambda: IAM roles, VPC integration, and security measures?

Cloud/Toolseasy0.6 min readPremium

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Asked at 1 company

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179

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Daniel Wellington

Expert AnswerPremium

120 wordsInterview-ready

**Why Lambda security**: Lambda executes your code; compromised function = access to everything the role allows. **IAM**: Assign minimal role—only permissions needed. Avoid wildcards; scope resources (e.g., specific bucket/prefix). Use resource-based policies for cross-account. **VPC**: Place in private subnets when accessing RDS, ElastiCache, or internal APIs. Use VPC endpoints for S3/DynamoDB to avoid NAT and public internet. VPC adds cold-start latency—only use when necessary....

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