Under Armor – the developer of MyFitnessPal application – has recently requested (via e-mail) all the apps users to immediately: ”Change your password for any other account on which you used the same or similar information used for your MyFitnessPal account”. It further suggested to: “Review your accounts for suspicious activity and be cautious of any unsolicited communications that ask for your personal data or refer you to a web page asking for personal data”. In conjunction with the announcement of the event itself, the company assured the users that the theft of data was limited to user names, e-mail addresses and encrypted passwords.

The company became aware of it on March 25th, and deduced that unauthorized parties had access to the accounts since late February. According to Under Armor, hackers did not have access to credit card numbers and other sensitive data of application users.

Under Armour said it is working with data security firms and law enforcement, but did not provide details on how the hackers got into its network or pulled out the data without getting caught in the act. Even though the company’s handling of the incident has been solid so far, one has to wonder how many more of these incidents will be seen before companies start taking data security more seriously.

According to Chip, this is another major data leak from Amazon servers. The earlier one concerned the theft of customer data of the Limoges Jewelry online store.