TISC 2026 by CSIT wrapped last week. Five finals challenges, five completely different rabbit holes.

Favourite was a hardware one. Spent hours convinced my approach was broken. Quick chat with an organiser revealed the truth: NO ONE HOLDS THE ADMIN DEVICE. It was on a pole up front. I was pressing my button every time a different organiser walked past my desk like an NPC. Walked over, pressed it, boom, solved.

Sometimes the bug is not in your code. It is in your assumptions about the room.

#TISC2026 #Cybersecurity #SGCyber #CSIT #CTF #DEFCON #InfoSec #DEFCONSG #TISC #EthicalHacking

Reflecting on Day 1 of the HTX CTF Finals here in Singapore.

I didn't win, but the technical takeaway was clear: Precision is a force multiplier.

By focusing on a high hit rate rather than just speed, I held 5th place for a good portion of the day. It’s a great reminder that in our field, being precise is a technical skill in itself.

Looking forward to the Day 2 challenges tomorrow!

#CTF #Cybersecurity #AISecurity #IoTSecurity #DEFCON #HTXsg #DEFCONSG #EthicalHacking #CaptureTheFlag #PublicSafety #HTXctf

Anyone already in Singapore for DEF CON?

It’s my first time in Singapore, so any recommendations on what to see/do are welcome!

#defcon #defconsg

Qualified for TISC CTF 2026 🎉 DEF CON Singapore finals next week 🇸🇬

The last 2 challenges were brutal. I kept reminding myself there was still time and still angles I hadn't tried. Pushed through - and captured that 4th flag just hours before the clock ran out 🍀

Five domains: cryptography, binary exploitation, signal analysis, protocol parsing, reverse engineering. Brilliantly designed 🍪

Built everything I needed from the community - writeups, tutorials, Reddit and Discord. That shared knowledge is everything 🙏

Every challenge has a solution. Keep going 🔥

#CyberSecurity #CTF #DEFCON #InfoSec #DEFCONSG #TISC #EthicalHacking

Qualified for HTX CTF Finals at DEF CON Singapore 🇸🇬 - 13th in the online round, 65/74 solved. 🔥

Both tracks were AI Security and IoT Exploitation. Neither is my daily work. Meant learning how prompt-driven systems break, how MQTT/CoAP expose attack surface, and how one forgotten device pivots into everything else.

All under the clock. ⏱️ Finals end of April. 💪

#CTF #Infosec #AISecurity #IoTSecurity #DEFCON #HTXsg #DEFCONSG #EthicalHacking #CaptureTheFlag #PublicSafety

DEF CON Training is headed to Singapore!

In April 2026, the first-ever DEF CON Singapore, co-hosted with Home Team Science & Technology Agency and Centre for Strategic Infocomm Technologies csitsg, will kick off with two days of world-class instruction on cutting edge topics.

Want to join us? The Call for Trainers (CFT) is now open and accepting applications until 11:59 pm PT on November 10: https://training.defcon.org/pages/2026-singapore-call-for-trainers

Be sure to take a look at the list of topics of interest to provide your application the greatest chance of success.

Send submissions and questions to [email protected].

We hope to see you there!

#defcon #defcontraining #defconsg #singapore #cybertraining #cybersecurity #infosec #cyberdefense #pentesting #redteam #blueteam #reverseengineering #AI #threathunting #IoT