Under Armour has reported that data from some 150 million MyFitnessPal diet and fitness app accounts was compromised last month, in one the biggest hacks in history. As a result the massive hack, Under Armour shares dropped down 3% in after-hours trade, according to Reuters.
In a statement released by Under Armour, the company revealed that the stolen data includes account user names, email addresses and scrambled passwords for the popular MyFitnessPal mobile app and website. However, much more important information, such as Social Security numbers, driver license numbers and payment card data were not compromised.
Under Armour says it is working with data security firms and law enforcement, but they did not provide any details regarding how the hackers got into its network or pulled out the data without getting caught in the act.
The hack is reportedly the largest data breach this year and one the top five to date, according to SecurityScorecard. Reuters reports that larger hacks include the 3 billion Yahoo accounts compromised in a 2013 incident and credentials for more than 412 million users adult websites run by California-based FriendFinder Networks Inc in 2016.