## Description
Can you decrypt this message?Decrypt this [message](https://artifacts.picoctf.net/c/531/cipher.txt) using this key "CYLAB".
## Solution
As suggested by the challenge name, this is a vigenere cipher we need to decrypt. We can use an [online tool](https://www.dcode.fr/vigenere-cipher) to decrypt, either by inputting the key "CYLAB", or inputting picoCTF as a known plaintext.
## Flag
*picoCTF{D0NT_US3_V1G3N3R3_C1PH3R_c481du5f}*