challenge description:

1)Download the image

2) When seeing this image we have no idea But...

3)After doing some research we found that this is an "yautja cipher"

4)Using the above image we found that

Iamn0talien

5)Separate it into words

I_am_n0t_alien

6)Wrap it with HAC-SEC,thats the flag

HAC-SEC{I_am_n0t_alien}