According to a notification memo sent to DoE employees and published by The Wall Street Journal, more than 14,000 past and current employees' personal information may have been exposed by the hack.
"We believe about 14,000 past and current DOE employees’ [personally identifiable information] may have been affected," the memo states. No classified data was affected, according to the DoE.
Cyberattackers were able to access the information by hacking into a human resources system which included information such a payroll data, The Wall Street Journal says, citing anonymous sources familiar with the situation.
The notification is the second that the DoE has issued to employees this year. In February, the DoE informed several hundred employees of a breach perpetrated by "sophisticated attackers."
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