Challenge writeups for Grey Cat The Flag Qualifiers 2022 by NUS Greyhats and the National Cybersecurity R&D Lab (NCL) of Singapore. Also abbreviated as GreyCTF. This ran from 6 June - 10 June.

Writeups for the HTX Investigators' Challenge (HTX IC) 2021 by the Home Team Science and Technology Agency of Singapore. This 12 hour competition took place on 20 December.

Special guest writeup by drome for Challenge 8 of Flare-On 8 2021! This contest is organised by the FireEye Labs Advanced Reverse Engineering (FLARE) team from 10 September - 22 October.

Special guest writeup by drome for Challenge 1 of Flare-On 8 2021! This contest is organised by the FireEye Labs Advanced Reverse Engineering (FLARE) team from 10 September - 22 October.