Other departments not affected.
The U.S. Library of Congress has said its IT system was hacked with an adversary accessing email communications between January and September.
According to media reports, authorities gave no immediate information on the attacker, including whether their identity was known.
“The Library has mitigated the vulnerability that the adversary used to access the environment and has taken measures to prevent such incidents in the future,” the library said in the notification.
It also said that the House and Senate's information technology networks, “including individual House and Senate email accounts, were not compromised in any way."
Written by
Dan Raywood
Senior Editor
SC Media UK
Dan Raywood is a B2B journalist with more than 20 years of experience, including covering cybersecurity for the past 16 years. He has extensively covered topics from Advanced Persistent Threats and nation-state hackers to major data breaches and regulatory changes.
He has spoken at events including 44CON, Infosecurity Europe, RANT Conference, BSides Scotland, Steelcon and ESET Security Days.
Outside work, Dan enjoys supporting Tottenham Hotspur, managing mischievous cats, and sampling craft beers.
