SecureCard writeup or how i learned to stop redstone flux and love the radio frequency i started working a fulltime job 1.5 years ago and that more or less coincided with my ctf team merging into a mega team and ever since then i haven’t been playing ctfs a lot i love ctfs because i get to learn stuff, do stuff with my friends, make new friends. this challenge has helped achieve all of those goals and i’m so happy to be back.