We have analyzed the servers after the weekend's hacker attack, and there are no signs that we have lost data. The attack has been aimed directly at our business, not our users.
We do not store payment card information. The only information we keep is our users email addresses, phone numbers and their PIN codes for the Bycyklen bikes.
In our databases we use "salted password hashing", that is, all PINs are encrypted and cannot be read or recreated, neither by Bycyklen nor any other player.
For security purposes, we encourage all our users to change their PIN as soon as possible.