“The Council Secretariat is aware of allegations regarding a potential leak of sensitive information and is actively investigating the issue,” the body that represents EU governments in Brussels said in a statement.
The Secretariat declined to comment further but said it “takes the security of its facilities, including its IT systems, extremely seriously”, referring to concerns about vulnerabilities in its data systems across 28 EU states.
The New York Times reported late on Tuesday that hackers had broken into the EU’s diplomatic communications for years, downloading cables that showed worries about the Trump administration, struggles to deal with Russia and China, and the threat of Iran reviving its nuclear programme.