abmst (A Bit More Secure Terminal) prevents unintended execution of terminal documents (e.g. virus, masked as a normal document, which want to execute terminal sessions). Freeware.
Also download our other free-of-charge tools.
Available for:
Mac OS X Jaguar/Panther/Tiger/Leopard
NOTE: Due to a bug in Apple Terminal for Snow Leopard abmst can not protect on Snow Leopard!
Mac OS X