Syncopation This is a challenge from the HTB Business CTF in July 2021. The user has to enter a “killswitch”, when this switch is correct, it is equivalent to the flag. The challenge was solved using binary ninja in the normal graph disassembly view. At the end of the article there is also a high level IL view of the flag comparison function. This is a very short first post for this blog and hopefully not too many details are left out.