A letter from Jahan

Three codes where found in the A letter from Jahan post on the Investigate Ingress blog.

[1] jw4mc7lo4d93my

[2] gukgkgyrytpctnhaqz

[3] H\N3\N3\YZCHLMBH\VMCN\NJ\NKDME

Code #1

Observations

All the ingredients are there. Need to rearrange in the right format

Code #2

Observations

All letters, a few ciphers can apply, go through your normal routine

[hint]That’s the one every one forgets[/hint]

Code #3

Observations

Here’s an interesting one. Those \ have to mean something. Try counting the numbers of letters to see what you get.