Pegasus Had a Number Six Running Its Network and Nobody Noticed

Two people with the exact same face and the exact same field, and nobody noticed. Pegasus had a Number Six as its network administrator while another Six walked around Caprica with Gaius Baltar, and the Cylons got away with it.

This is where it all comes together. What the fleet valued couldn't stand up to the Cylons; the junk was what kept flying. But ironically, Galactica wasn't the only Battlestar that would make it out.

Pegasus was in the middle of an overhaul when nukes hit the shipyard

Pegasus was docked at the fleet shipyards for a three month overhaul. The first sign anything was wrong was nukes hitting that shipyard. The crew didn't know what was going on, just that they were under attack. Five ships, including two Battlestars, were destroyed almost instantly, and Pegasus lost around 700 of its crew.

Pegasus's systems were down for the updates when the attack happened. One line from the show lays out what the ship's network was supposed to offer: "The beauty of a network system is that with the right passcode, you can control just about any part of the ship from any other. Of course, the system's down right now for the retrofit, but in an emergency, it's like having unlimited backups."

I think losing the computers might be what saved Pegasus

Then the attack knocked out the rest of the computers. Personally, I think that might be what saved them. If the computers were knocked out, there was nothing left to hack, and the crew had to do everything by hand. They'd find the Cylon backdoor later, once the systems came back up.

With no computers, though, they had no way to calculate a jump. That's where Cain comes in. She said jump anywhere, and she didn't care if they ended up inside a sun. It was a desperate move, and it worked.

Gina, another Number Six, was Pegasus's network administrator

There's one more piece. Pegasus's network administrator was Gina, another Number Six, with the same face as the Six who rewrote half the program. One was on the operations side of a Battlestar; the other was on Caprica, walking around in public with Gaius Baltar. Two people with the exact same face and the exact same field, and nobody noticed.

To be fair, the Cylons only had so many models to work with. They couldn't give every agent a new face. Getting caught was never a sure thing, but they got away with this one.

Was that overconfidence, or did they just not have a choice?