At least my card data was really stolen about a month ago (it had probably leaked from some online purchase). Someone tried to use my card for authorization on some web shop. Seemed that Aktia was on top of the problem and I got a text message notification already of the first try. After calling them, my card was closed permanently and I received a new card in about one week. After that, I've seen on the app several declined tries to do online purchases with the closed card.