The health care organization said it was notifying 13.4 million current and former members of the breach.
According to Kaiser, the information released did not include usernames, passwords, Social Security numbers
"Kaiser Permanente is not aware of any misuse of any member’s or patient’s personal information," the company said in a statement Monday.
we are informing approximately 13.4 million current and former members and patients who accessed our websites and mobile applications.
We apologize that this incident occurred."
Kaiser said it is conducting an internal investigation into the breach.
when members and patients accessed its websites or mobile applications.