From bleepingcomputer.com
Publishing giant Macmillan was forced to shut down their network and offices while recovering from a security incident that appears to be a ransomware attack.
The attack reportedly occurred over the weekend, on Saturday, June 25th, with the company shutting down all of their IT systems to prevent the spread of the attack.
Publishers Weekly first reported on the incident, seeing emails from Macmillan that stated they suffered a “security incident, which involves the encryption of certain files on our network.” The use of encryption in the attack indicates that it was a ransomware attack.
Since then, Macmillan editors have been unusually transparent about the security incident, telling agents and clients that they are not being ignored, but have lost access to their systems, emails, and files.