Three codes were hidden in the LIBERATE post on the Investigate Ingress blog.

[1] yfn61ufgfiv551wv

[2] 8n6j8gcnjehzz4a5

[3] ij5riyyxvivvangemi

Code #1

Observations

Passcode format is there, go through your usual cipher routine

Code #2

Observations

16 characters with the right amount of numbers for a valid passcode

Code #3

Observations

The third row should guide you to the keyword !