The insurer said it stopped the intrusion after identifying suspicious activity on its U.S. network last week.

The health and life insurance firm said the attack on its U.S. network, which was identified on June 12, was caused by a ...

Plus, a pediatric brain surgeon in New Jersey shares her struggle with UnitedHealthcare after a hack of one of its ...

JPMorgan analyst Lisa Gill upgraded UnitedHealth Group's target price to $418 from $405 and maintained an Overweight rating ...