Code #1

Observations

Passcode format is there, just remember to apply the same logic to the keyword

Spoiler

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

Spoiler

Make a 3×5 grid

Reverse rows 2 & 4

Read going down from the upper left 3

3ygn2gluonc3v2x

Looks like hex but range is off

Spoiler

Let’s start by making pairs to see what we are working with

cd b1 bc ac ca ac aa ac be b1 b1 be b7 c7 b0 cc bc

Look at where number positions should be in the passcode format, they all start with C. Hex atbash using this index

0123456789abcdef
fedcba9876543210

32 4e 43 53 35 53 55 53 41 4e 4e 41 48 38 4f 33 43

Convert hex to Ascii

2NCS5SUSANNAH8O3C