---
title: "Discussion on \"You Isolated Every Room. You Shared the Cupboard.\" | Hashnode"
description: "Discussion on \"You Isolated Every Room. You Shared the Cupboard.\". A shared package cache let sealed AI sandboxes exchange 70,000 messages. Here is the cross-room test that proves whether your isolation is real."
url: "https://hashnode.com/posts/you-isolated-every-room-you-shared-the-cupboard/6a9cb72888cb6a6b9b833d1b"
---

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# [You Isolated Every Room. You Shared the Cupboard.](https://neerazz.hashnode.dev/you-isolated-every-room-you-shared-the-cupboard?utm_source=hashnode&utm_medium=feed)

A shared package cache let sealed AI sandboxes exchange 70,000 messages. Here is the cross-room test that proves whether your isolation is real.

Sep 6 · 5 min read · neerazz.hashnode.dev  
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-   [#ai-security](https://hashnode.com/tag/ai-security)
-   [#agentic-ai](https://hashnode.com/tag/agentic-ai)
-   [#security-engineering](https://hashnode.com/tag/security-engineering)

## Written by

[Neeraj Kumar Singh Beshane](https://hashnode.com/@neerazz)

@neerazz · Fremont, California, USA

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

Security Infrastructure · AI Security · Distributed Systems

Staff Security Infrastructure Engineer at Parafin, working on Zero Trust for embedded lending infrastructure with $35B+ in capital offers extended. AI security researcher: EmbedGuard, GenOps, RuntimeGuard-AI, and the PerceptFence Zenodo/GitHub support artifact. Speaker at Conf42 DevOps, Conf42 LLMs, and CIMA 2026. Gold Laureate, Hackathon Raptors Fellow, IICSPA Fellow, Sigma Xi Full Member. I write about agentic AI security, MCP/tool-runtime risk, RAG security, Zero Trust, and platform engineering. ORCID: 0009-0002-2125-1805

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