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44 disclosed this week · 26,355 on record

Microsoft

Disclosed Mar 22, 2022Confirmed

Official notice

Lapsus$ compromises a Microsoft account and leaks Bing and Cortana source code

Microsoft confirmed that the group it tracks as DEV-0537 (Lapsus$) gained limited access through a single compromised account and published partial source code for products such as Bing and Cortana. Microsoft said no customer code or data was involved.

What is known

People affectedNot stated in the sources we have
DisclosedMar 22, 2022
AttackHacking
Data exposedSource code
SectorTech · US
StatusConfirmed

Sources

Notices filed

Other breaches at Microsoft

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History of this record
Added2026-09-25
First recordedby seedSource

First seen 2026-09-25 (Research), confirmed by Research. Record counts are as reported. Not legal advice.

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