Don't Touch My Fone
We are given an audio file that recognisably sound like the button presses on a payphone.
This is called Dual-Tone Multi Frequency a.k.a. DTMF.
This used to be communicated from the phone box to the switching centre, the switching centre then knows where to route your call based on the tones.
There is an online tool to Detect DTMF Tones which we can use the .wav on:
Flag: DawgCTF{4104553500}
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