10 years ago, europeonline launched a service where your traffic downlink would be routed through a satelite connection.
They also had a service that let you predownload files from http/ftp servers and then you could request an offline broadcast from their servers to your home pc.
Instead of refetching every file again and again, they also optimized by only checking the file size + file name.
So, someone came along and created a fake ftp server script, which just replied with a listing of the things you wanted to download, and they there instantly added to your account. You only had to know the filename + filesize.
They also had a service that let you predownload files from http/ftp servers and then you could request an offline broadcast from their servers to your home pc.
Instead of refetching every file again and again, they also optimized by only checking the file size + file name. So, someone came along and created a fake ftp server script, which just replied with a listing of the things you wanted to download, and they there instantly added to your account. You only had to know the filename + filesize.