Imagine you have a folder in your Dropbox with 237 subfolders, and each of those subfolders has a certain number of files in it. The largest folder has 1,132 files, for example, the second largest has 916, the third-largest has 771, etc.
Then imagine you have a second folder with 117 subfolders with another pattern like above.
Now imagine that the first folder structure matches a torrent of embarrassing pornography and the second appears to be a superset of a project published to GitHub under your name (i.e. with some directories being gitignored)