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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.

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.

> **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
>
> — vx-underground (@vxunderground) [March 22, 2022](https://twitter.com/vxunderground/status/1506099203977666563)

not in our leaker index

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](https://www.theverge.com/2022/3/22/22991409/lapsus-microsoft-security-windows-source-code). [TechCrunch](https://techcrunch.com/2022/03/23/microsoft-lapsus-hack-source-code/) also reported the confirmation.

Confirmed. Leakly does not link the dump.

[Confirmed]

## What happened later

Confirmed by Microsoft on March 22, 2022.

## Sources

* [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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