To keep you and your computer secure, Hands Off! silently monitors all operations performed by the applications running on your computer. As soon as an application tries to perform an operation for which there is no rule defined, a Hands Off! notification will appear. The notification contains all the relevant information about the operation to allow you to make an informed decision. Moreover, until you answer the notification, the operation is safely blocked and Hands Off! keeps you protected.
Two types of Hands Off! notifications exist: preset and operation. Preset notifications are used to associate a default security preset to an application. Operation notifications are used to inform you of the occurence of an operation for which there is no rule defined, so you can decide if you want to allow or deny it.
https://www.oneperiodic.com/products/handsoff/