Three codes could be found hidden in the Missed Connection post on the Investigate Ingress blog.
[1] luc28mnoxmkt732ni
[2] xvezefedddfdnacgenzhfgfgxed
[3] m3m3b79cnx8k
Code #1
Observations
The passcode format is right there, go through your usual cipher routine.
Code #2
Observations
All letters, no particular range.
[hint]Nop not morse this time, more like numbers[/hint]
Code #3
Observations
All the right ingredients, that same old cipher again.