Ulrich and Jeremy in “Unfinished Business”

Ulrich

that's not a good thing?

No! Aelita doesn't know that when she transfers the code, her memory will be exposed!

Ulrich

What? Are you saying X.A.N.A. will be able to steal it at will?

Exactly! I'm pretty sure that's why the Scyphozoa attacked Yumi.

Ulrich

So, warn Aelita, tell her to stop.

I can't. She's cut off all communication with the tower. So you two have to get to Lyoko, fast!