Three codes were hidden in the HTML source of the Favors for Friends post on the Investigate Ingress blog.
[1] 537noqcr5553
[2] h,d28Zk;g377,,
[3] uwiruottteytiyuoueyitutptyiiit
Code #1
Observations
12 characters with only 5 letters.
[hint]5 letters is what you need for prefix and suffix[/hint]
We have enough letters for prefix and suffix but too many numbers. Start by splitting the code in 2
537noq
cr5553
Reverse both strings
qon735
3555rc
Looks more and more like a code. Recombine the strings
qon7353555rc
53 is the keyword part. Convert to leetspeak
qon73se555rc
Code #2
Observations
14 characters, the commas give it away.
Those commas give it away as a keyboard flip. So 1=0, q=p, a=; and z=/
gck93/dah844cc
/dah is not a keyword. Notice that the Z which became / was the only capital letter in the code. Shift-/ is ?
gck93?dah844cc
The question mark can be sub by Why to make the keyword whydah
gck93whydah844cc
Code #3
Observations
30 letters. Try to find where they come from !
All those letters are from the first row of letters on the keyboard. Shift them up to numbers and make pairs
72 84 79 55 53 65 86 79 73 68 57 50 56 88 85
Convert decimal to Ascii
HTO75AVOID928XU
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