«Personal details of about 150 million users of the MyFitnessPal app were compromised in one of the biggest hacks in history, its owner has confirmed. US sportswear brand Under Armour said user names, email addresses and scrambled passwords were among the stolen data. However, payment card data was not affected. It urged customers to change their passwords immediately».
Source : Hackers steal data of 150 million MyFitnessPal app users | Technology | The Guardian