Disk usage growing at 4MB/hr on new site

Hi,

I've noticed my site growing in disk usage very quickly and am wondering if it's some sort of Dolphin logs running?

The site is brand new and as it is in development, it is blocked from Google's index and there are only 3 people who know of its existence, including myself and my wife, plus the guy who's template I'm using.

Can 4MB/hr really just be CMS logs on a completely new and unused site (or meb i'm has bin haxored /cry)?

Thanks in advance for your comments.

 The only way for Dolphin to grow like that would be people uploading pics/vids/music. Dolphin doesn't have log files on disk.

Is it a shared hosting account or a VPS/dedicated server? If it's a VPS/ded it's probably either your server logs or backups. 

It is shared hosting on a reseller account with its own cPanel.  None of my other sites hosted there grow like this. 

Ah, it's an error_log file and probably isn't from Dolphin.