<br /><br />
A number of apps in the Mac App Store have been found to be stealing data from its users, acquiring sensitive information and sending it to the developer, including one app which was the top paid utility available in the store before its removal.
Article Link: https://appleinsider.com/articles/18/09/07/more-malicious-apps-found-in-mac-app-store-that-are-stealing-user-data