Under Armour has announced that about 150 million users of their MyFitnessPal fitness and nutrition app and website have been affected by a data security breach. The company learned of the breach, which included usernames, email addresses and hashed passwords, four days ago, according to a person familiar with the matter.
The leaked data did not include Social Security numbers and driver’s license numbers and information that the app does not collect from users. The breach also did not affect payment card data, which is collected and processed separately. The brand began notifying MyFitnessPal users Thursday afternoon, via email and through app messaging.