Security News > 2023 > April > Medusa ransomware crew brags about spreading Bing, Cortana source code

The Medusa ransomware gang has put online what it claims is a massive leak of internal Microsoft materials, including Bing and Cortana source code.

"This leak is of more interest to programmers, since it contains the source codes of the following Bing products, Bing Maps and Cortana," the crew wrote on its website, which was screenshotted and shared by Emsisoft threat analyst Brett Callow.

Below is Callow's summary of the purported dump of source code presumable obtained or stolen somehow from Microsoft.

Microsoft didn't respond to The Register's request for comment, and ransomware gangs aren't always the most trustworthy sources of information.

Microsoft later confirmed Lapsus$ had compromised its systems, and tried to downplay the intrusion by insisting "No customer code or data was involved in the observed activities."

"Microsoft does not rely on the secrecy of code as a security measure and viewing source code does not lead to elevation of risk," it added, which is a fair point.

News URL

https://go.theregister.com/feed/www.theregister.com/2023/04/19/medusa_microsoft_data_dump/