"
1 - Create a large-ish file (1MB) outside of the Dropbox folder
2 - Monitor the network usage of the Dropbox application to see if it sends enough data that it could be that file
"
I can not really say if Dropbox steals them or not. But if i were a Dropbox engineer and want to know about those newly created files, i wouldn't want to send the whole file to server at all.
- Send file name with its extension
- Send file size
Compare these to dropbox's blacklist file (imagination only) in another server. If there are any matches, mark user as "whateveryouwant"
As long as there is a network activity when a new file created, it is and will always be suspicious to its users.
And they don't have to steal the whole file at once, why not chunk it out and do bits at a time over a few days. This is tinfoil hat territory, but they'd still get the file and network traffic wouldnt be overly suspicious.
2 - Monitor the network usage of the Dropbox application to see if it sends enough data that it could be that file
"
I can not really say if Dropbox steals them or not. But if i were a Dropbox engineer and want to know about those newly created files, i wouldn't want to send the whole file to server at all.
- Send file name with its extension
- Send file size
Compare these to dropbox's blacklist file (imagination only) in another server. If there are any matches, mark user as "whateveryouwant"
As long as there is a network activity when a new file created, it is and will always be suspicious to its users.