21. The computer-implemented method of claim 17 , wherein the causing the targeted deletion comprises sending push notifications to the plurality of user devices indicating that the one or more documents should be deleted from the plurality of user devices.
17. A computer-implemented method comprising: identifying a plurality of user devices associated with a user of a document management and collaboration system on which the user has had a user session; determining that one or more documents associated with the user that were downloaded to the plurality of user devices from the document management and collaboration system should be deleted from the plurality of user devices; causing a targeted deletion of the one or more documents from the plurality of user devices; and receiving, from the plurality of user devices, indications of successful deletion of the one or more documents.