Microsoft’s corporate networks and corporate im networks, are the latest target of an attack, which Microsoft is blaming on a malicious actor.
The company has said it will investigate the issue, and is working with governments and other governments to get the threat taken down.
The attack comes as Microsoft is preparing to launch its Windows 10 operating system on Tuesday.
The Windows 10 OS is expected to be the most popular version of Microsoft’s operating system, and it is widely expected to drive up adoption of the OS.
Microsoft is offering free updates to users for Windows 10 until November 18, and the company is working to patch the vulnerability to prevent other people from being infected.
However, the company will not be making a Windows 10 upgrade for its customers until November 16.
Microsoft said that “any affected user who wants to upgrade to Windows 10 should do so as soon as possible, and contact their Windows or Office customer service representative immediately”.
The company is offering users who have been affected by the attack the option to get a free Windows 10 update for the first 30 days, but that does not include any new features.
It has also removed the ability to install Windows 10 on any device that does already support the OS on that particular machine.