Sean Lyngaas reports:
At least 100,000 people could have had their data compromised by a hack of contractors at the Department of Health and Human Services, a department official said Thursday, making it the latest US government agency to be caught up in a sweeping cyberattack connected to Russian cybercriminals.
HHS notified Congress of the breach on Tuesday and will update lawmakers as the investigation continues, the official said. Agencies are required to notify Congress of a data breach that involves the compromise of personal information of 100,000 or more people.
Read more at CNN.