Under Armor Inc., which is part of a growing list of victims of hacker attacks, said earlier this year about 150 million user accounts linked to the MyFitnessPal Nutrition App were injured.
An unauthorized party stole data from the accounts in late February, said Under Armor on Thursday. She became aware of the violation earlier this week and took steps to warn users about the incident.
Under Armor's shares fell even further in the late trading session after the announcement by 4.6 percent to $ 1
The data did not contain any information about payment cards or government-issued identifiers, including social security numbers and driver license numbers. Nevertheless, user names, e-mail addresses and password data were assigned. And the sheer scope of the attack – which affects a user base larger than Japan's population – would make it one of the larger violations.
Under Armors announcement comes a day after Boeing Co. It was hit by a cyberattack. In this case, malicious software "a small number of systems affected," said the aircraft manufacturer on Wednesday.
The MyFitnessPal App allows users to track their calorie intake, diet and exercise routines. Under Armor agreed in 2015 to buy the software to become the world's largest fitness information tracking tool. The idea was to expand the company's roots in sportswear and accessories.
Now the Baltimore-based company faces the disadvantage of having a data-centric business. Under Armor has involved security companies to help with the investigation and is working with law enforcement agencies.
The company has sent emails and in-app messages to users to alert them to the attack. It asks customers to change their passwords immediately.