Three codes could be found in the Silent post on the Investigate Ingress blog.

[1] gpsisefoamfroaofefmx

[2] 4e8j7vgypaeey6n9

[3] 9777184525873756874837765525655807

Code #1

Observations

You can spot a few written numbers in there. A bit of a rearrange will give you the code.

Code #2

Observations

Right amount of numbers in there. Overused cipher applies

Code #3

Observations

All numbers, you can spot the range and know what you have to do.