Can another user retain a copy of a deleted shared file?¶

Yes. Deleting the source object does not recall copies already downloaded, synchronised, duplicated, exported or sent elsewhere by people with access.

Distribution can leave the provider's control¶

A collaborator may hold a full offline copy in a synced folder, a detached download, a copy in another workspace or an attachment in a message. Once content enters another service, the original provider may no longer record its use or deletion.

Historical permissions and shared-folder records show who could obtain the file. Download, copy and export events may show particular distribution, while device and recipient-service evidence can confirm what remains.

Copies may not be the same version¶

One recipient may retain V-12 while another downloaded V-14. Preserve content, hashes, timestamps and any object/version relationship rather than treating matching filenames as the same item.

Absence from a recipient's current account does not prove they never possessed it. A copy may have been deleted locally, moved or retained on another device.

State deletion and downstream possession separately¶

The provider deletion establishes what happened to the source object. It does not determine every recipient's later possession or use.

Priya downloads OneDrive version V-14 of object OBJ-7210 through event DL-311 to Surface path C:\Cases\briefing.docx; the device records hash H-44. Dave later deletes the shared source in event DEL-318, but Teams message MSG-902 shows Priya attaching a file with the same hash afterwards. The joined records strongly establish a surviving copy and its route. They do not, without device or contextual evidence, establish who controlled Priya's account or opened the attachment.

The next useful comparison is DL-311 and MSG-902 against Priya's session and device activity, the full message context, recipient delivery records and the precise content of V-14.