What potential risk is involved with backing up shared folder apps while services are running?

Backing up shared folder apps while services are running can lead to a situation where the backup files may become corrupted. This risk arises because the apps are actively being used, and if any changes are made during the backup process, it can result in inconsistent states or incomplete data being captured. The backup might not accurately reflect the true state of the app at a particular moment in time, leading to potential corruption of the files. This could make the backup unusable for recovery purposes.

In contrast, other concerns such as unwanted data, lack of updated data, or encryption are less directly related to the integrity of the backup files themselves when services are actively running. While those issues may also be relevant in other contexts, the primary risk during a running state is the potential for corruption due to the simultaneous changes occurring in the application.