Osint
Did you pay attention to everything going on before the start of the CTF ?
Format : Hero{flag}
Author : Log_s
If you check the annoucement tweet and linkedin post, you will recover 2 parts of the flag. The missing part can be found on annoucements on various discord servers, including the heroCTF discord.
Hero{W3lcome_ // twitter
2_h3r0CTF_v4_ // discord
h4ve_Fun!!!} // linkedin
Hero{W3lcome_2_h3r0CTF_v4_h4ve_Fun!!!}