A recent security breach to one of Under Armour's entities, MyFitnessPal, has affected an estimated 150 million people.

MyFitnessPal is a food and nutrition-based application and website that was initially acquired by Under Armour for $475 million back in 2015, according to The VergeIt has roughly doubled in size since its acquisition by the popular sportswear outfitter. 

Information obtained in the breach includes usernames, e-mail addresses, and passwords. Thankfully, no financial information, such as credit card numbers, was compromised because it is collected separately. Sensitive information like social security and driver's license numbers were also safe because they are not part of the data collected by Under Armour from its users. Despite certain information not being obtained in the data breach, it is still an alarming amount of app users to be compromised in connection to a significant sportswear corporation like the Maryland-based Under Armour brand. 

Under Armour first became aware of the security breach on March 25 after discovering that an unauthorized party had gained access to the MyFitnessPal user information back in February. The company has since notified its affected users and is investigating the origins of the infiltration. 

In an official statement regarding the incident Under Armour says, "Four days after learning of the issue, the company began notifying the MyFitnessPal community via email and through in-app messaging. The notice contains recommendations for MyFitnessPal users regarding account security steps they can take to help protect their information. The company will be requiring MyFitnessPal users to change their passwords and is urging users to do so immediately."