TISC is a two-week online sequential style Capture-the-Flag (CTF) competition organised by CSIT since 2020. It provides opportunities for Singaporeans to put their cybersecurity and programming skills to the test by solving challenging puzzles against the clock.

TISC is an individual competition, with participants completing a series of challenges, sequentially, that increase in difficulty. These challenges will cover various topics including, but not limited to, Web Penetration, Forensics, Reverse Engineering, Binary Exploitation, Cryptography, Mobile, Cloud and OSINT.

TISC is open to Singapore citizens only.

CSIT employees and seconded staff to/from CSIT are not eligible to participate.

Check out the Terms and Conditions of participation here. 

Why should you participate in TISC? 

TISC is an individual challenge. Participants will have the opportunity to win cash prizes up to $30,000. The top three levels of challenges have a cash prize pool of $10,000 each to be shared between participants who successfully cleared the respective levels.

Digital badge of completion. Those who completed a certain number of challenges will be awarded a digital badge indicating the highest level completed. The digital badge can be shared on social media.

Digital badge of participation. Participants who completed at least one challenge will receive the digital badge of participation as a memento of your participation in TISC.

TISC Swag. Selected participants who solve the most levels in the shortest time will receive Swag. In 2023, they received a Divoom Ditoo Pixel Art Gaming Portable Bluetooth Speaker. In 2024, the top 50 participants can receive a customised and exclusive TISC keycap.

If you wish to create challenges to test the skills of your fellow cyber peers, you could participate as a challenge creator instead! S$1,000 will be paid for each selected challenge.

Check out our FAQs here. 

More than 1,300 cybersecurity experts answered the call in TISC 2024 to track down the source over an exciting 16-day journey. Find out more about TISC 2024 summary here. 

If you have any other enquiries (bugs, write-ups etc), you can contact us at tisc_contactus@csit.gov.sg.