Library of Congress Reports Cyber Breach of Email Communications

An adversary accessed emails between congressional offices and library staff from January to September.

The Library of Congress has informed lawmakers about a cyber breach involving its IT system.
Emails between congressional offices and Library staff, including the Congressional Research Service, were accessed.
The breach did not compromise the House and Senate's IT networks or individual email accounts.
The Library has mitigated the vulnerability and referred the matter to law enforcement for investigation.
The U.S. Copyright Office systems were not affected by the breach.