
What we’re about
Division Zero (Div0) is an open, inclusive, and completely volunteer-driven cybersecurity community. The mission of Div0 is to promote a vibrant cybersecurity community and safer cyberspace in Singapore. Div0 does so by providing a platform where cybersecurity professionals, practitioners, and enthusiasts can meet like-minded people, explore and learn with peers, and contribute to the community at large. Div0 activities include organising events, encouraging contributions and collaborations, and reaching out to the public.
We use this Meetup group to manage our membership and publish our events. It's free for all to join — just simply click on "Join this group", and you're in.
Learn more about Div0: https://www.div0.sg/about
We also feature a Discord Server — the Div0 Digital Kampung — a 24/7 chatroom where Div0 members discuss everything cybersecurity and lifestyle in the digital world.
Sponsors
Upcoming events
4

Div0 & Range Village — AD Workshop
CyberSG TIG Collaboration Centre (formerly ICE71), 71 Ayer Rajah Crescent, Singapore, SG⚠️ REGISTRATION IS REQUIRED VIA THIS SIGN UP FORM (LUMA) ⚠️
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ABOUT THE RANGE VILLAGE
The Range Village is a community driven cyber range interest group aimed to provide community curated Cyber Range content for people who are interested in practicing their cyber skills such as active directory testing, lateral movements, defence evasion, and provisioning of an attack infrastructure. We live in a world where cybersecurity education is within a Google search or a GenAI prompt, but the access to a certain range or resource to practice those skills can be costly to individuals who are not in the position to self-fund a paid cyber range or premium access range.
ABSTRACT
The workshop will cover:
- Introduction to Active Directory
- Active Directory Attacks 101
SET UP INSTRUCTIONS FOR PARTICIPANTS
Participants will need to bring their own laptop with a Kali Linux virtual machine
AGENDA
- 10:30 | Door opens
- 11:00 | Workshop starts
- 12:00 | Mini lunch break
- 12:45 | Workshop continues
- 13:45 | End of workshop - start of hangout
- 16:00 | End of event
SPONSORS
- VENUE SPONSOR: CyberSG TIG Collaboration Centre
LEAD FACILITATOR
Sim Cher Boon | Cher Boon is a Security Engineer at Grab and the Co-Founder of the Range Village community group. He has competed in multiple CTFs, both locally and overseas, spoken at local and overseas conferences on security topics, and now focuses on developing the next generation of cyber talents through guidance and meetups.
IMPORTANT NOTICES
- Code of Conduct: https://www.div0.sg/code-of-conduct
- Terms of Use & Disclaimer Notice: https://www.div0.sg/terms-of-use-disclaimer-notice
18 attendees
SHELLgym — Building and Breaking Web apps
CyberSG TIG Collaboration Centre (formerly ICE71), 71 Ayer Rajah Crescent, Singapore, SG⚠️ REGISTRATION IS REQUIRED VIA THIS GOOGLE FORM ⚠️
ABSTRACT
SHELLgym is the regular cybersecurity workout you have been looking for! Whether you're just starting out and need some exercises, studying for a cert (hint: OSCP), looking at CTF challenges, or developing something cybersecurity-related (maybe your own automated tools?), SHELLgym aims to help you progress in picking up practical cybersecurity knowledge and skills. Come and go as you please, work on your own stuff with like-minded individuals, or just have fun during the workout!
AGENDA
Thematic activities for this session
- General web frameworks and their administration
- Dockerisation
- Web enum and attacks
- Web defences, logging and threat hunting
⚠️ NOTE
Bring your own laptops (and laptop chargers). Optional - Linux VM
TRAINER
KK Tan — Founder, counterShell
As a mid-careerist convert to cybersecurity, Tan KK picked up his practical skills through getting OSCP certified and by participating in a variety of CTFs. In his career at CSIT, he performed a variety of red-teaming and vulnerability research roles and established the Cyber Training School at CSIT as the Lead Instructor. Besides the OSCP certification, KK is also OSCE and OSEE certified, and has a Bachelor's degree in Social Science (Psychology). He now sees psychology as a field of study where you fuzz humans until they produce unexpected behaviour.
SPONSORS
- VENUE SPONSOR: CyberSG TIG Collaboration Centre
IMPORTANT NOTICES
- Code of Conduct: https://www.div0.sg/code-of-conduct
- Terms of Use & Disclaimer Notice: https://www.div0.sg/terms-of-use-disclaimer-notice
37 attendees
#BadgeLife in Singapore: An Introduction
CyberSG TIG Collaboration Centre (formerly ICE71), 71 Ayer Rajah Crescent, Singapore, SG⚠️ REGISTRATION IS REQUIRED VIA THIS GOOGLE FORM ⚠️
ABSTRACT
Conference badges are more than just simple cards. Combining cyber security challenges with creative hardware electronics, #BadgeLife is a growing movement that bridges the gap between the digital and physical security.
At this meetup, we will explore the history of #BadgeLife with Singapore’s local scene rapidly carving out its own unique identity.
ABOUT BADGELIFE QUARTER
Badge Life Quarter provides a focused gathering for those curious about the intersection of cybersecurity, hardware hacking, and electronics design.
No prior experience in electronics design or soldering is required. Whether you are a seasoned engineer or a complete beginner, this meetup is the perfect starting point.
SPEAKERS
- Terence Chan | Terence is a 3rd year NUS Computer Engineering student, and also an electronic badge enthusiast. He has made various Electronic Badges for NUS Greyhats GreyCTF and other similar events. He is also currently interning at Espressif Systems as a Digital IC Designer. Linkedin Profile
SPONSORS
- VENUE SPONSOR: CyberSG TIG Collaboration Centre
IMPORTANT NOTICES
- Code of Conduct: https://www.div0.sg/code-of-conduct
- Terms of Use & Disclaimer Notice: https://www.div0.sg/terms-of-use-disclaimer-notice
12 attendees
SHELLgym — Linux Forensics and Reverse Engineering basics
CyberSG TIG Collaboration Centre (formerly ICE71), 71 Ayer Rajah Crescent, Singapore, SG⚠️ REGISTRATION IS REQUIRED VIA THIS GOOGLE FORM ⚠️
ABSTRACT
SHELLgym is the regular cybersecurity workout you have been looking for! Whether you're just starting out and need some exercises, studying for a cert (hint: OSCP), looking at CTF challenges, or developing something cybersecurity-related (maybe your own automated tools?), SHELLgym aims to help you progress in picking up practical cybersecurity knowledge and skills. Come and go as you please, work on your own stuff with like-minded individuals, or just have fun during the workout!
AGENDA
Thematic activities for this session
- Triaging in Linux
- Step-by step IDA
- Step-by-step gdb
- Guided walkthrough on selected real-life binary
⚠️ NOTE
Bring your own laptops (and laptop chargers) with pre-installed Linux VM. Please also download IDA Free (Link to Guide) before the session.
VIRTUAL SHELLgyms in FEBRUARY
Hosted on Discord, do approach KK or the Div0 Crew for access!
- 7 Feb 2026, 1pm-3pm (SGT)
- 21 Feb 2026, 1pm-3pm (SGT)
- 28 Feb 2026, 1pm-3pm (SGT)
TRAINER
KK Tan — Founder, counterShell
As a mid-careerist convert to cybersecurity, Tan KK picked up his practical skills through getting OSCP certified and by participating in a variety of CTFs. In his career at CSIT, he performed a variety of red-teaming and vulnerability research roles and established the Cyber Training School at CSIT as the Lead Instructor. Besides the OSCP certification, KK is also OSCE and OSEE certified, and has a Bachelor's degree in Social Science (Psychology). He now sees psychology as a field of study where you fuzz humans until they produce unexpected behaviour.
SPONSORS
- VENUE SPONSOR: CyberSG TIG Collaboration Centre
IMPORTANT NOTICES
- Code of Conduct: https://www.div0.sg/code-of-conduct
- Terms of Use & Disclaimer Notice: https://www.div0.sg/terms-of-use-disclaimer-notice
14 attendees
Past events
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