Three codes could be found in the FOLLOWUP: PRIME INTEL post on the Investigate Ingress blog.

[1] d4hd8d3a2xasr4z

[2] cmx34ofrar754mm

[3] 7a9a78a8a9898c8e8d7b889a87afafae8f98

Code #1

Observations

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

Make a 5×3 grid

Read going down from the upper left D

dda43shard248xz

Passcode format is there, go through your regular cipher routine

Looks like hex but need a bit of tweaking

Let’s make pairs to see what we are working with

7a 9a 78 a8 a9 89 8c 8e 8d 7b 88 9a 87 af af ae 8f 98

Notice those A where the numbers should be in the passcode. Let’s try hex atbash using this index

0123456789abcdef
fedcba9876543210

85 65 87 57 56 76 73 71 72 84 77 65 78 50 50 51 70 67

Convert decimal to Ascii

UAW98LIGHTMAN223FC