First started with letters to numbers to see if it would give a good Ascii range but nothing good. Then tried Atbash, Rot and a few others and nothing came out. When all else fails, try Vigenere Autokey with “A” as the passphrase

hehbicfafghahjhghghjihfefffhijha

Now the letters are all in the A to J range or 0 to 9. Convert letters to numbers

74718250567079767679875455578970

Make pairs

74 71 82 50 56 70 79 76 76 79 87 54 55 57 89 70

Convert decimal to Ascii

JGR28FOLLOW679YF

These words are all names of islands in the Great Barrier Reef

.rattlesn,ake mich.aelm,as h.aggerst,one ma.car,thur sincl,a.ir whee.l,er black,wo.od h.ampt,on cholmon,deley capric,o.rn

You’ll need to count the letters before each commas and dots to make up a decimal number. Commas indicate the tens, dots the ones. Note the in “cholmon,deley” that comma should be a semicolon because the value is 77.

80 84 81 52 56 54 57 51 77 76

Convert decimal to Ascii

PTQ48693ML

Great Barrier Reef, barrier is a valid keyword

ptq48barrier93ml

Let’s start by converting the symbols to their respective numbers on the keyboard

0212037624781616

Making pairs doesn’t give a good range for either numbers to letters or ascii. Let’s see how we can split things up to get a passcode format

02 12 03 76 2 478 16 16

In this way we have 3 pairs for letters, then 2 numbers, a 2 for the keyword, 4 numbers and 2 pairs for letters

Convert numbers to letters where needed

cmd76 2 478qq

Now we need a keyword substitution for 2 or @. Few theories:

1. @ for 2, convert to letters is C then substitue as see, probable Niantic error for seek that can be substituted for search
2. Glyph for search sort of resembles @

Who knows, the valid keyword was search

cmd76search478qq