Reattribution

Noun

1. The act of attributing again.

   "the reattribution of a text of disputed authorship"

2. The process of determining whether artwork is real or fake, and, if fake, determining when and by whom it was created.
3. A therapeutic technique in which the client is encouraged to consider possible alternate causes for events.
4. A change of attribution for a target (usually a customer or user) that was previously active.