Three codes were hidden in The Chamber post on the Investigate Ingress blog.
[1] owylykzutzuekotzqszqrpuprpuotnpuwzuwzuszqsov
[2] gf394ntum96ycv
[3] bcw39meoa749ho
Code #1
Observations
All letters with no particular range.
Code #2 & #3
Observations
Both codes are the same length and work together.