[grantcarthew]

I put an unsecured open FTP server on the internet about 20 years ago, just to see what would happen.

Within half a day I had some pirate "marking" his claim to my FTP server, then he/she started uploading a game. I deleted everything and left it open again.

It was a long time ago, so I don't remember all the details, but all the pirates would create directories inside directories, upload files, then mark it with their mark. All of this was scripted I gather.

After a while, I set up a file system watcher that deleted subdirectories. This gave me an FTP server I could use for anything. I shut it down a few months later.

Interesting though.