The company said that its investigations revealed problems with a small number of internal accounts, and that one of the accounts was used on New Year’s Eve 2021 to display the source code in a number of internal software repositories.
Notably, this disclosure confirms the persistence of the hacks associated with the penetration of SolarWinds, which used Microsoft’s flagship network monitoring program based in Texas as a springboard to penetrate other technology-sensitive US government networks.
Microsoft also revealed that it had found malicious versions of the SolarWinds program used for the famous hack, on whose name the incident was known, in its network, in addition to discovering some new malicious code.
It is worth noting that the company’s source code is usually a set of basic instructions that occupy a large part of its internal operating system and one of its most sensitive and guarded secrets.
Microsoft said that the hacked account did not have the ability to modify any code inside Microsoft’s main internal software, and that it did not find any evidence that the hackers had access to production information and services or customer data, adding: “The ongoing investigation did not find any Indications that our systems are being used to attack others. “