Tags: nato flaghoist alphabet crypto 

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For this challenge, we are given a jpg file.

Analyzing the file, the symbols tell us that they represent an alphabet/substitution cipher. The hint tells us that these symbols are recognized all around the world.

Doing some research, we discovered a file containing NATO phonetic alphabet, codes, & signals.

Translating from Flaghoist Communication to English, we get riftctfjusta7r1but3t0armedForces.

Flag: riftCTF{Just_A_7r1but3_t0_armedForces}

Original writeup (https://github.com/joeyjon123/riftCTF/wiki/Crypto-0x004).