The file is 80 gigabytes and Sportadmin writes in a comment to the newspaper that they believe it contains sensitive personal data.
"We can now unfortunately confirm that the perpetrator has carried out their threat," writes Sportadmin.
Earlier in March, parts of the personal data were published online, which was then confirmed by Sportadmin.
It was on January 16 that the app was hit by a data breach. The app is used by 1,700 sports associations for, among other things, calling training sessions. The company behind the app states that they have personal data on 1.7 million people, many of whom are children and some with protected personal data.