We do standard backups of all accounts nightly. HOWEVER, It is the client's responsibility to do all backups of their site. If, in the unfortunate event, something happens to your files, it is your responsibility to have a local copy of your files.
We are NOT held liable in any way for any files, money, time, effort, etc... lost due to an unfortunate event. If your files are lost, we will attempt to restore them as a gesture of good faith, but we make no promises whatsoever about whether the files will be brought back successfully or not. Again, backups are the client's responsibility.