information security & capture the flag

I've participated in several information security competitions, sometimes under teams /bad or mushroom 🍄. Cryptography and reverse engineering puzzles are my sort of thing. Some of my ✏️ writeups are available on github.

2022

• ENISA International Cybersecurity Challenge 2022 - Hopefully representing Singapore in 🇬🇷 Greece later this year!

2021

• DSO-NUS CTF 2021 (✏️ Writeups) - 21st place, participated solo
• CDDC 2021 (DSTA) - 🥇 Team 1st place, but it's a long story...
• ACSC 2021 (✏️ Writeups) - 9th overall, 🥈 Individual 2nd in Singapore
• STANDCON CTF - Played with team Eridanus, Team 6th place
• ASEAN Cyber SEA Games 2021 - Represented 🇸🇬 Singapore, Team 3rd place
• TISC 2021 (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

• Cybersecurity Challenge Singapore 2018 (CSA) - 🥇 Top 6 indivdual + Top Team prize
• Cybersecurity Challenge UK 2018 - ✈️ Part of Singapore delegation

2017

• CDDC 2017 (DSTA) - 🥉 3rd place, JC/IP category
• Cybersecurity Challenge Singapore 2017 (CSA) - 🥇 Top 6 indivdual + Top Team prize