Microsoft has now confirmed that the Russian cyberspies who broke into its executives' email accounts stole source code and gained access to internal systems. The Redmond giant also characterized the intrusion as "ongoing." In an updated US SEC filing and companion security post, Microsoft provided more details about the security breach, which it first disclosed in January. At that time, Microsoft said Midnight Blizzard — the Kremlin-backed crew also known as Cozy Bear and APT29 that was behind ...