iTWire Wednesday, 17 March 2021 09:58 Mimecast says source code was stolen by SolarWinds attackers Featured Pixabay Email security firm Mimecast says a hit on its infrastructure by attackers who used the SolarWinds supply chain to gain access, went deeper than already reported, with some of the company's source code being stolen. The company said on Tuesday, in an update to two previous blog posts on the same topic, that the threat actor(s) had gained additional access to its production grid and compromised a number of Windows systems. On 14 January, Mimecast issued an announcement saying that a certificate it had issued for authentication of Mimecast Sync and Recover, Continuity Monitor, and IEP products to Microsoft 365 Exchange Web Services had been compromised.