Last updated 1 year ago
When storms occur in movies, lights fluctuate.
Looking at the crypto.txt file, we see only 2 characters: Y and K. This is a morse code.
morse code
Using , and replacing Y with 0 and K with 1, converting from binary, we get the flag
0
1
xCTF{z3r0_0n3_z3r0_0n3}