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# Microsoft source code taken by Lapsus$ through one account — confirmed

@vxunderground relayed the Bing and Cortana source dump on March 22, 2022. Microsoft confirmed “a single account” was compromised.

Published 09 Nov 2026, 09:08 UTC · Leaked on 22 Mar 2022, 02:43 UTC

Leaked on 22 March 2022

![Evidence tray card: Microsoft source code taken by Lapsus$ through one account — confirmed](https://leakly.com/assets/og/microsoft-lapsus-source-code.png)

At 02:43 UTC on March 22, 2022, @vxunderground posted that Lapsus$ had released partial source code for Bing, Bing Maps and Cortana.

Later that day Microsoft confirmed that a single account had been compromised, giving limited access, and said no customer code or data was involved, according to The Verge. TechCrunch also reported the confirmation.

Confirmed. Leakly does not link the dump.

[Confirmed]

## What happened later

Confirmed by Microsoft on March 22, 2022.

## Sources & captured post

> **vx-underground** @vxunderground
>
> LAPSUS$ extortion group has released source code to Bing, Bing Maps, and Microsoft Cortana.
> They state that each release is incomplete (not the entire source code).
>
> 627 likes · 149 reposts · counts as of 09 Nov 2026, 07:12 UTC
>
> [View the post on X](https://x.com/vxunderground/status/1506099203977666563) · not in our leaker index

### Original source & corroborating coverage

* [Original X post by @vxunderground](https://x.com/vxunderground/status/1506099203977666563)
* [The Verge — Microsoft confirms Lapsus$ hackers stole source code via ‘limited’ access](https://www.theverge.com/2022/3/22/22991409/lapsus-microsoft-security-windows-source-code)
* [TechCrunch — Microsoft confirms breach after hackers publish source code](https://techcrunch.com/2022/03/23/microsoft-lapsus-hack-source-code/)

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