Under Armor revealed on Thursday after market closure that his MyFitnessPal app was hacked.
The fitness apparel company learned earlier this week that data on 150 million accounts for the website and app were violated.
"The investigation found that the information involved contained usernames, e-mail addresses, and hash passwords ̵
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Under Armor is currently notifying MyFitnessPal users of the vulnerability via e-mail and email In-App Messaging and asks all app users to change their passwords.
Under Armor, thanks to the acquisition of several Fitnes s-app companies – including MyFitnessPal – have gathered vast amounts of data for both professional and fitness enthusiasts. The company has even claimed to have the largest database of athlete behavior, including statistics on exercise, diet and sleep patterns. Under Armor has said it uses this data to make its equipment smarter.
The data has helped Under Armor move from being a clothing manufacturer to an athletic performance and technology company competing with Nike for the same target audience.
Under Armor's associated fitness platforms include UA Record, MapMyFitness, Endomondo, and MyFitnessPal. All of these platforms are unified to run on Amazon Web Services.