Re: How could they evac Pegasus?
You're absolutely right. They should be concerned about WIRELESS networks or traffic (both between systems onboard, and between them and the vipers). Wireless would be their way in, and also explain why they had wired phones and older headsets. Of course, Pegasus had way more wireless gear (to look newer and kewler), so would have been at greater risk.
If just networking the computers together, but doing it by hard-wiring them) made them vulnerable, then each system was already vulnerable by itself (moreso because they implied the firewall Gaeda added was new and just for that), and the ship would have been lost before they left the arms depot in the pilot...
Perhaps, if I am very lucky, the feeble efforts of my lifetime will someday be noticed and maybe, in some small way, they will be acknowledged as the greatest works of genius ever created by man. ~Jack Handey