> Markdown version of [/events/conference-india-2026/sessions/1985-how-google-built-a](https://www.wearedevelopers.com/events/conference-india-2026/sessions/1985-how-google-built-a). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

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# How Google built a Consistent, Global Authorization System with Zanzibar (and you can too!)


- **Event:** Conference India 2026

## Description

Google Zanzibar is the singular authorization service that powers permissions and sharing across all Google properties, including Docs, YouTube, and Cloud IAM. Creating a consistent, global-scale authorization system that can process "more than 10 million client queries per second” is not a trivial task. The talk will cover how the paper lays out an engineer-friendly blueprint for building a highly scalable distributed system with flexible consistency guarantees.


This talk will start with foundational knowledge of Relationship Based Access Control (ReBAC) and then cover the technical implementations behind Zanzibar - How Google solved for correctness, scale and speed. The presentation will cover the different APIs for interacting with the system and also a deep-dive into how the “New Enemy” problem was solved. The talk will conclude with how you an use open source tools to build authZ into your application.

## Speaker

### [Sohan Maheshwar](https://www.wearedevelopers.com/@sohan-maheshwar)

Developer Advocate Lead at AuthZed


## Related talks at this congress

- [Beware of Strangers Bearing Code: Open Source Trust in the Agent Era](https://www.wearedevelopers.com/events/conference-india-2026/sessions/1978-beware-of-strangers) — Vikram Vaswani
- [Shipping MCP to Real Users: Scaling, Auth, and the PII Leak You Didn't See Coming](https://www.wearedevelopers.com/events/conference-india-2026/sessions/1993-shipping-mcp-to-real) — Hadar Geva
- [Thinking in Graphs, Reasoning with Gemini!](https://www.wearedevelopers.com/events/conference-india-2026/sessions/1996-thinking-in-graphs) — Bhavesh Bhatt
- [Architecting Trusted AI: Coupling Multi-Agent Systems with dbt Semantic Store for Zero-Hallucination](https://www.wearedevelopers.com/events/conference-india-2026/sessions/1976-architecting-trusted) — Pushkar Mishra

## Watch remotely

Can’t make it to Bengaluru? Watch this session live with Pro. You also get:

- All full videos, bookmarks, and playlists
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[See pricing](https://www.wearedevelopers.com/pricing)

## Links

- [Get tickets](https://www.wearedevelopers.com/conference-india/tickets)