HV19.H2 Hidden Two
https://academy.hacking-lab.com/events/6/challenges/55
In HV19.07 Santa Rider we have downloaded a HV19-SantaRider.zip
which was an MP4 file with a strange name. It's possible that the name could has a meaning...
3DULK2N7DcpXFg8qGo9Z9qEQqvaEDpUCBB1v
Firing up CyberChef and trying base64
does not work.
But using base58
we get the following solution
HV19{Dont_confuse_0_and_O}