Telling a customer that they can't access their data on your service because they broke their laptop is going to make them very unhappy. Depending on your targ

Telling a customer that they can't access their data on your service because they broke their laptop is going to make them very unhappy. Depending on your target market, that can be a selling point. Tell them early and tell them often that you don't keep copies of their keys and if they lose them, they won't be able to access the information. Remind them to make backups.