Ad“This is a sophisticated actor who did their best to hide their tracks,” she told reporters at the White House.
It will take us some time to uncover this layer by layer.”U.S. authorities have said the breach, first disclosed in December, appeared to be the work of Russian hackers.
“An advanced, persistent threat actor likely of Russian origin was responsible," she said, without providing any details on the potential responses.
She said the Biden administration supports changes to “culture and authorities” that prevented the hack from being detected on the federal civilian systems.
The hack, Neuberger said, highlights the need to modernize the nation's IT infrastructure and its cyber defenses, issues that will be addressed in an upcoming executive order.