Hello everybody I am going to buy a iMac soon and would like to get an external hard-drive to take advantage on the Time Machine program. I would like to buy a 500GB Time Capsule because it is wireless so it will keep the iMac uncluttered. However because the Time Capsule works on wireless networks dose that mean that any computer on the network will be able to delete and look at all my data on the Time Capsule. Or is there a way of password protecting the content of the Time Capsule so my brother can't just edit what's on it. Thank You.