
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 X HRS Career Series Special - Purple Team Workshop Trilogy
CyberSG TIG Collaboration Centre (formerly ICE71), 71 Ayer Rajah Crescent, Singapore, SG⚠️ REGISTRATION IS REQUIRED VIA THIS GOOGLE FORM ⚠️
*Please keep a look out for our email on the outcome of your registration that will be sent to you at 1-2 day(s) before the session. If you did not receive any updates, please drop us an email at community@div0.sg*
HRS Talents and Division Zero are Painting December Purple — Join Our Cybersecurity Workshop Series Special!
This December, we’re turning the spotlight on collaboration, capability building, and cutting-edge tradecraft with a trio of Purple Team–centric workshops. Whether you're levelling up your detection engineering, sharpening your adversary emulation skills, or strengthening cross-team communication, these sessions are designed to help you operate at the speed of the modern threat landscape.
Workshop 1: “50 Shades of Purple” — Practical Purple Team Lab by Pengfei
🗓️ 16 December 2025 (Tuesday), 7pm - 10pm
Kick off the series with a hands-on lab where you’ll work in small teams to simulate a full Purple Team engagement using a structured 4-phase framework. You’ll translate theory into action: shaping threat emulation plans, crafting realistic TTPs, and strengthening the communication muscle needed for effective cross-functional security operations.
Workshop 2: Building a Threat Detection & Response Use Case by Aaron
🗓️ 17 December 2025 (Thursday), 7pm - 10pm
Wrap up the series by constructing a complete, intelligence-driven threat detection and response use case. From identifying attacker behaviours to designing detection logic and validation steps, this workshop empowers you to build practical, repeatable detection content aligned with real-world threats.
Workshop 3: Adversary Emulation with GenAI by Shannen, Xavier and Glendon
🗓️ 18 December 2025 (Wednesday), 7pm - 10pm
Step into the future of collaborative security. This interactive session shows you how to integrate Generative AI into Purple Team workflows to accelerate detection engineering. Learn how AI-driven payload variation, automated rule generation, and tighter feedback loops can transform your security cycles and help you stay ahead of sophisticated adversaries.
Secure your spot, sharpen your craft, and join us in elevating your organisation’s defensive posture this December.
SPONSORS
- PLANNING SPONSOR: HRS Talents Cyber
- MEETUP VENUE SPONSOR: CyberSG TIG Collaboration Centre
INSTRUCTOR'S BIO
- Pengfei | https://www.linkedin.com/in/pengfei-yu-69783a93/
- Shannen | https://www.linkedin.com/in/shannen-wee/
- Xavier | https://www.linkedin.com/in/xavieryeoxyz
- Glendon | https://www.linkedin.com/in/glendonng
- Aaron | https://www.linkedin.com/in/zhongyuan-hau/
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]
30 attendees
Sharpen Your Trajectory, Shape Our Future — with CREST & CDQ
CyberSG TIG Collaboration Centre (formerly ICE71), 71 Ayer Rajah Crescent, Singapore, SG⚠️ REGISTRATION IS REQUIRED VIA THIS GOOGLE FORM ⚠️
*Please keep a look out for our email on the outcome of your registration that will be sent to you at 1-2 day(s) before the session. If you did not receive any updates, please drop us an email at community@div0.sg*
Join us for a Christmas / Year-End Special edition of our community gathering jointly organised by CREST and Div0’s Career Development Quarter (CDQ), a light hearted, open-to-all session to wrap up the year with meaningful conversations, shared learning, and connection with the community.
This festive meetup features our Ask-Me-Anything (AMA) Roulette, where speakers and trainers are "purposefully" selected to answer questions on career journeys, professional development, and the evolving future of cybersecurity. Expect candid perspectives, fresh insight, and a format that keeps things engaging.
Whether you’re staying in town for the holidays, catching up with familiar faces, or simply looking to unwind while picking up something useful, this is the perfect space to relax, reflect, and close out the year together.
Come for the atmosphere, stay for the stories. Let’s end the year strong — and in great company.
AGENDA
- 7.00pm — Div0 & CREST Intro (Registration from 6.30pm)
- 7.10pm — AMA Roulette
- 7.50pm — POAP 2025 Review
- Till late — Chill & Vibes
SPONSORS
- MEETUP SPONSOR: CREST
- PLANNING & BEVERAGE SPONSOR: HRS Talents Cyber
- MEETUP 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]
24 attendees
SHELLgym — 12 Ways to Inconvenience Your Life for Security
CyberSG TIG Collaboration Centre (formerly ICE71), 71 Ayer Rajah Crescent, Singapore, SG⚠️ REGISTRATION IS REQUIRED VIA THIS SIGN UP FORM ⚠️
ABSTRACT
On the 12 days of christmas, SHELLgym gave to me: 12 tips to improve cybersecurity!
Except that we don't have 12 days (just 4 hours).
And every one of those tips aren't really "gifts" because they will inconvenience you in some way or another.
So avoid Big Santa's ability to collect your PII and pop down for a grinchy session of SHELLgym on 20 December 2025.
⚠️ NOTE
Bring your own laptops (and laptop chargers). VMs optional.
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.
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
Div0 & Range Village Presents DECEMBER HA-THERING
CyberSG TIG Collaboration Centre (formerly ICE71), 71 Ayer Rajah Crescent, Singapore, SG⚠️ REGISTRATION IS REQUIRED VIA THIS SIGN UP FORM ⚠️
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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
Participants will expect open range(s) for them to participate in person. There will be one range, Hacker Jeopardy with mystery prize.
SET UP INSTRUCTIONS FOR PARTICIPANTS
Participants will need to bring their own laptop with a Kali Linux virtual machine
AGENDA
- 10.00am: Registration & Networking (30 mins)
- 10.30am: Introduction & Announcement (15 mins)
- 10.45am: Range starts
SPONSORS
- VENUE SPONSOR: CyberSG TIG Collaboration Centre
- SNACKS, CHOCOLATES & PRIZES: The Range Village
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
Past events
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