Three codes were hidden in the HTML source of the DAMAGE CONTROL post on the Investigate Ingress blog.

[1] 8gh6lgkyk5pq7hg

[2] 8etrb7xexk4bt5hu

[3] ou.pgqtztsefsrum0wtrf

Code #1

Observations

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

Code #2

Observations

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

Code #3

Observations

25 characters but why that dot… It would make 24 characters without it