The hackers who attacked SolarWinds managed to gain access to Microsoft's internal network and gain access to a small number of internal accounts used to access the company's source code repositories.
The news came from the company itself on Thursday.
Microsoft said the attackers did not make changes to the repositories they accessed because the compromised accounts they only had rights to view the code.
The company stressed that, despite viewing parts of the source code, the hackers were unable to reach systems production, customer data or obtain products of Microsoft to attack the company's customers.
The Redmond-based company says its investigation is ongoing.
Microsoft admitted on December 17 that it was using SolarWinds Orion, a monitoring platform, within its network.
It was one of thousands of companies that discovered malware on their networks that were created through infected Orion updates.
Of course, Microsoft denies that the hackers saw the internal source code repositories, claiming that this is not important.
“At Microsoft, we have an in-house approach – we use development best practices software open source.
This means that we do not rely on source code for product security and the security models we use assume that intruders already know the source code. ”
