Peter Boogaard, a DHS spokesman, would not confirm the identity of the contractor but said that a multiagency cyber response team is working to identify the scope of the attack and how many employees were affected.
He said the agency has determined that some DHS personnel have had their personal information compromised and the agency has notified its entire workforce to monitor their financial accounts for suspicious activity.
“As we continue to investigate the nature of this breach on an urgent basis, we will be notifying specific DHS employees whose [personally identifiable information] we can determine was likely compromised.”
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