US health giant Kaiser hit by data breach — millions of customers informed they could be at risk

American healthcare giant Kaiser Foundation Health Plan exposed sensitive data on millions of its current and former patients, apparently by mistake. 

Among the data inadvertently shared with advertisers are member names and IP addresses, and information regarding their membership status with Kaiser Permanente. Furthermore, the company leaked information on how members interacted with the website and the apps, and what they searched for in the health encyclopedia.