information security & capture the flag

I've participated in several information security competitions, sometimes under teams /bad or mushroom πŸ„. Cryptography and reverse engineering puzzles are my sort of thing.

See a list of my writeups here.

2022

2021

  • DSO-NUS CTF 2021 (writeups) - 21st place, participated solo
  • CDDC 2021 by DSTA - πŸ₯‡ Team 1st place, but it's a long story...
  • ACSC 2021 (writeups)- 9th overall, πŸ₯ˆ Individual 2nd in Singapore
  • STANDCON CTF - Played with team Eridanus, Team 6th place
  • ASEAN Cyber SEA Games 2021 - Represented πŸ‡ΈπŸ‡¬ Singapore, Team 3rd place
  • TISC 2021 by CSIT - 5/10 challenges cleared, Individual 7th place
  • CTFTime 2021 Season - Played solo in many online competitions and reached 11th in Singapore

2020

  • STACK the Flags 2020 (Govtech) (writeups) - Team 8th place, Tertiary category

2018

2017