I see no problem. FW is a networking protocol. So, there is always the risk that someone else that breaks into one of the computers can get into the other via the FW connection, but that is a remote possibility only, and probably not what you are at all concerned with. --Steve At 6:15 PM +0200 8/5/04, Luis Meleiro wrote: >Is there any danger in letting a FW cable always attached to two >Macs even if I'm not using FW Target Disk Mode!? >This question may seem strange but I ask it 'cause I find it tedious >to plug/unplug each time I intend to use TDM.