Dropbox – How to Identify Which Computer Added a File

Not through the web interface or any other DropBox application.

However, I submitted a ticket to DropBox support and they were able to tell me the source of the event. Then the following exchange occurred.

Me: Is there any way I could have figured this out on my own or is this info available only from the back-end?

DB Support: It's only available to us here in tech support.

Whilst it is possible to unlink other computers through the web interface, as slhck noted, this leaves all of your files where you don't want them. Depending on the sensitivity of your files (and how much work you want for yourself) you can:

1. Back up all Dropbox files locally
2. Delete any sensitive files from your Dropbox
3. Wait for the sync to remove these files from the remote computer
4. Unlink the offending computer(s) from https://www.dropbox.com/account#security
5. Return the backed-up files to your Dropbox for re-syncing

It might be worth leaving any other synced computers off (or disabling their syncs) during this process to avoid the sync deleting/restoring where unnecessary.