Three codes were hidden in the HTML source of the A SECURE DELIVERY post on the Investigate Ingress blog.

[1] wxbimkujwwcedhqiivkbzdbn

[2] 2r4q2csskhedj5a9

[3] 7em..oolffq3x.51s

Code #1

Observations

You’ll need a passphrase for this one

Code #2

Observations

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

Code #3

Observations

Those dots are the biggest hint