Cybersecurity firm Mimecast confirmed that SolarWinds hackers breached its network stole some of its source code from its repositories. The company added that the source code accessed by the hackers was incomplete and would be used to build and run any component of the company’s service. The Russian cyber espionage group tampered with updates for the companys Orion Network Management products that the IT company provides to government agencies, military, and intelligence offices. Solarwinds was one of its customers that were infected with the Sunburst backdoor distributed through tainted software updates.”]
Source: https://securityaffairs.co/wordpress/115670/data-breach/solarwinds-hackers-stole-mimecast-code.html