---
title: "Discussion on \"AWS Lambda MicroVMs: run untrusted code with VM-level isolation (no infra to manage)\" | Hashnode"
description: "Discussion on \"AWS Lambda MicroVMs: run untrusted code with VM-level isolation (no infra to manage)\". AWS just shipped Lambda MicroVMs, a new serverless primitive that gives each user or session a VM-level isolated sandbox, with near-instant launch and state preserved for up to 8 hours, all on Firecracker. Here is what it is, when to reach for it instead of a plain Lambda Function, and how to architect on top of it."
url: "https://hashnode.com/posts/aws-lambda-microvms-untrusted-code-isolation/6a3b541c5cfac4ef063b667d"
---

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Discussion

# [AWS Lambda MicroVMs: run untrusted code with VM-level isolation (no infra to manage)](https://willpeixoto.dev/aws-lambda-microvms-untrusted-code-isolation?utm_source=hashnode&utm_medium=feed)

AWS just shipped Lambda MicroVMs, a new serverless primitive that gives each user or session a VM-level isolated sandbox, with near-instant launch and state preserved for up to 8 hours, all on Firecracker. Here is what it is, when to reach for it instead of a plain Lambda Function, and how to architect on top of it.

Jun 24 · 12 min read · willpeixoto.dev  
Updated Oct 17  
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-   [#aws](https://hashnode.com/tag/aws)
-   [#aws-lambda](https://hashnode.com/tag/aws-lambda)
-   [#serverless](https://hashnode.com/tag/serverless)
-   [#firecracker](https://hashnode.com/tag/firecracker)
-   [#microvm](https://hashnode.com/tag/microvm)
-   [#ai](https://hashnode.com/tag/ai)

## Written by

[Will Peixoto](https://hashnode.com/@willpeixoto)

@willpeixoto · São Paulo, Brasil

  
[View profile](https://hashnode.com/@willpeixoto)

Staff Engineer at Serverless Guru · AWS Community Builder · AWS User Group São Paulo

Staff Engineer at Serverless Guru, AWS Community Builder and one of the leaders of AWS User Group São Paulo. Writing about serverless, event-driven architecture and AI agents on AWS, with code and the trade-offs on the table.

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