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 is a B2B journalist with 25 years of experience, including covering cybersecurity for the past 17 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 Forum, BSides Scotland, Steelcon and the National Cyber Security Show, and served as editor of SC Media UK, Infosecurity Magazine and IT Security Guru. He was also an analyst with 451 Research and a product marketing lead at Tenable.
