Decentralized Systems & Applications

## Details OWASP Singapore Chapter, together with Sectalks Singapore, is hosting a security meetup on 27th April 2026. Whether you're based in Singapore or visiting for Black Hat or DEF CON, this is a great chance to connect with security professionals from across the region. ⚠️⚠️ Kindly **RSVP on both Meetup and by completing this registration** **form:** [https://forms.gle/ibzvXh5opv8WucSM8](https://forms.gle/ibzvXh5opv8WucSM8) **AGENDA** * 7:00pm: Registration * 7:15pm: Introduction * 7:30pm: Talk 1 * 8:10pm: Talk 2 * 8:45pm: Snacks + Networking **SPONSORS:** Dexian Asia Pacific \| SECDIM \| **TALK DETAILS** **Talk 1 :** Conquering the Flames of Threat Modeling: Crash Course to OWASP Threat Dragon **Speaker :** Donavan Cheah **About the talk:** This session covers the fundamentals of threat modeling, starting with the four key questions from the Threat Modeling Manifesto, followed by an overview of the STRIDE framework. It introduces OWASP Threat Dragon and demonstrates how to deconstruct application architecture using sample projects. The talk also explores how to combine application-level threat modeling with the OWASP Web Security Testing Guide to build a structured pentesting methodology, and highlights why developing a threat modeling mindset is essential for growing from a junior to a senior pentester, before wrapping up with key takeaways. **Speaker Bio:** Donavan brings nearly a decade of cybersecurity experience across red teaming, penetration testing, threat modeling, and risk assessments. He has actively contributed to the open source community through his series of deliberately vulnerable machines on Vulnhub between 2018 and 2021, and has demonstrated strong technical depth by delivering threat modeling talks at conferences across Europe and Asia, including DefCamp in Romania, FIRST Central Asia in Uzbekistan, GCC 2025 in Taiwan, and SINCON in Singapore, often using OWASP Threat Dragon to introduce practical concepts. At Thales, he also led the development of a fully functional, Singapore-built cybersecurity gamification experience called “Defend the Breach” within just three months, enabling participants to step into the role of CISOs and make strategic decisions around cyber budgets, threat response, and security capabilities. **Talk 2 :** From Prompts to Pwned: Mapping Modern AI Threat Vectors **Speaker :** Abhinav Singh **About the Talk :** AI systems are expanding fast, and so are the ways they can be broken. Prompt injection is getting attention, but what actually makes it work? Where do the real risks sit, in the application layer or inside the model itself? And as agentic systems gain autonomy, what new attack surfaces are we introducing without fully understanding them? This session breaks down common AI threat vectors, from prompt manipulation to deeper architectural weaknesses. We will look at how application and model level risks differ, and how agentic systems reshape traditional threat modeling. The goal is to move beyond hype and get clear on where the real security gaps exist and how to think about them. **About the Speaker :** Abhinav Singh is an esteemed cybersecurity leader & researcher with over 15 years of experience across technology leaders and financial institutions, as well as an independent trainer and consultant. Author of "Metasploit Penetration Testing Cookbook" and "Instant Wireshark Starter," his contributions span patents, open-source tools, and numerous publications. Recognized in security portals and digital platforms, Abhinav is a sought-after speaker & trainer at international conferences like Black Hat, RSA, DEFCON, BruCon, and many more, where he shares his deep industry insights and innovative approaches in cybersecurity. He also leads multiple AI security groups at CSA, responsible for coming up with cutting-edge white papers and industry reports on the safety and security of AI. ***Since this is a free event, please RSVP only if you’re sure you can attend. We’ll be arranging food based on the number of responses, and no-shows can lead to unnecessary food wastage.***

OWASP Singapore Chapter, together with Sectalks Singapore, is hosting a security meetup on 27th April 2026. Whether you're based in Singapore or visiting for Black Hat or DEF CON, this is a great chance to connect with security professionals from across the region. ⚠️⚠️ Kindly **RSVP on both Meetup and by completing this registration** **form:** [https://forms.gle/ibzvXh5opv8WucSM8](https://forms.gle/ibzvXh5opv8WucSM8) **AGENDA** * 7:00pm: Registration * 7:15pm: Introduction * 7:30pm: Talk 1 * 8:10pm: Talk 2 * 8:45pm: Snacks + Networking **SPONSORS:** Dexian Asia Pacific \| SECDIM \| **TALK DETAILS** **Talk 1 :** Conquering the Flames of Threat Modeling: Crash Course to OWASP Threat Dragon **Speaker :** Donavan Cheah **About the talk:** This session covers the fundamentals of threat modeling, starting with the four key questions from the Threat Modeling Manifesto, followed by an overview of the STRIDE framework. It introduces OWASP Threat Dragon and demonstrates how to deconstruct application architecture using sample projects. The talk also explores how to combine application-level threat modeling with the OWASP Web Security Testing Guide to build a structured pentesting methodology, and highlights why developing a threat modeling mindset is essential for growing from a junior to a senior pentester, before wrapping up with key takeaways. **Speaker Bio:** Donavan brings nearly a decade of cybersecurity experience across red teaming, penetration testing, threat modeling, and risk assessments. He has actively contributed to the open source community through his series of deliberately vulnerable machines on Vulnhub between 2018 and 2021, and has demonstrated strong technical depth by delivering threat modeling talks at conferences across Europe and Asia, including DefCamp in Romania, FIRST Central Asia in Uzbekistan, GCC 2025 in Taiwan, and SINCON in Singapore, often using OWASP Threat Dragon to introduce practical concepts. At Thales, he also led the development of a fully functional, Singapore-built cybersecurity gamification experience called “Defend the Breach” within just three months, enabling participants to step into the role of CISOs and make strategic decisions around cyber budgets, threat response, and security capabilities. **Talk 2 :** [Details Coming soon] ***Since this is a free event, please RSVP only if you’re sure you can attend. We’ll be arranging food based on the number of responses, and no-shows can lead to unnecessary food wastage.***

Exploring Entrepreneurial Projects in Singapore and also in the China-Asean Economic Agency business in Guangxi, China. Explore the various channels of starting, operating and growing a thriving business in fast-growing industries. Explore opportunities to overcome the pressing challenges that Singapore faces: fastest ageing population, declining productivity, sky-rocketing costs, super competitive environment and ever growing number of foreign talents entering the already very tight economic spaces.....and many more. Complaining about these challenges will not help at all. Let's explore viable options and avenues opened to the average individuals to overcome these social-economic pressures.

**🤔 WHAT IS THIS AH? 🤔** * A initiative centred around **game design and the tabletop gaming industry** brought to you by #laiplayleow * This tabletop initiative is held an office area at the Labrador Park / Alexandra area * This is a non-ticketed initiative, **so do contribute with some F&B contributions!** * **THERE MAY OR MAY NOT BE ANY TABLETOP GAMING as that is not the focus for this monthly initiative.** **1\. The Designer’s POV: Poon Jon \(KL\, Malaysia\)** *Insights into the Malaysian tabletop design scene.* *First-hand experience as a game creator.* *Exclusive Teaser: Details on a major event he is organising this April.* **2\. The Player’s POV: Alex** The consumer experience: What makes a game stay on the shelf? Analysis of gameplay trends from a player’s perspective. *Don't miss this opportunity to hear from both sides of the board* **👥 HOW MANY CAN COME LEH? 👥** 18 game designers **💸 ADMISSION AND CONTRIBUTIONS 💸** 1. If this is a ticketed initiative, please pay money first ah before joining us on a tabletop adventure. 2. If this is a non-ticketed initiative, bring some snacks and drinks lor as contributions. **📌📌📌📌📌📌📌📌📌📌📌** **Important: No refunds for sudden unavailability. In the event of cancellation, a full refund will be provided promptly.** **📌📌📌📌📌📌📌📌📌📌📌** **📚DON'T SAY WE NEVER SAY 📚** * *We are candid. Like, very candid.* * *We think we can behave well for the first 10 minutes.* **🌐 CLICK BELOW TO KNOW MORE 🌐** * **[Our Website](https://laiplayleow.wixsite.com/home)** * **[Follow us on IG](https://www.instagram.com/laiplayleow/)** **[📞](https://emojipedia.org/telephone-receiver) WHATSAPP US [📞](https://emojipedia.org/telephone-receiver)** **[Contact us today! (WhatsApp ONLY)](https://wa.me/90531466)** **📌📌📌📌📌📌📌📌📌📌📌** **Important: No refunds for sudden unavailability. In the event of cancellation, a full refund will be provided promptly.** **📌📌📌📌📌📌📌📌📌📌📌** ***(All of the above information was last updated on January 14, 2024)***

A vibrant and welcoming community for crystal bracelet lovers, this group brings together people who share a passion for the beauty, energy, and meaning behind crystals—especially those who appreciate modern, fashionable Bazi crystal bracelets that break away from traditional designs. Our goal is simple: to connect like-minded individuals, spark meaningful conversations, and create a space where crystal enthusiasts can meet, learn, and express their personal style. Whether you're new to crystals or already deeply immersed, you’ll find a supportive circle that celebrates both aesthetics and knowledge. During our gatherings, members can look forward to: * Sharing insights about crystal properties and their energies * Exploring Bazi (Chinese metaphysics) and the Five Elements in a fun, accessible way * Enjoying crystal trivia and interactive discussions * Designing and creating your own customized crystal bracelet * Or taking home a unique piece crafted from our specially designed crystal collections This is more than just a group—it’s a place where tradition meets creativity, where spirituality meets style, and where every bracelet tells a personal story.

**Registration Link:** https://luma.com/mu4wsv8t Scalability is often treated as a purely technical challenge, something to solve with the right architecture, tools, or infrastructure. In reality, it is just as much about how we think. In this talk, Fion shares her journey of learning to design for scalability through real-world experience: navigating evolving requirements, growing systems, and the trade-offs that come with them. Rather than focusing on deep technical patterns, the session explores the decision-making process behind building systems that can grow sustainably. Through practical examples, she will reflect on: * How to recognise when scalability becomes a concern * Balancing simplicity vs. future-proofing * Breaking down systems into manageable, evolvable components * Learning from constraints, failures, and iteration This session is designed for developers who are early to mid in their journey, or anyone looking to strengthen their intuition around building systems that don’t just work today but continue to work as they scale. **Agenda** 6:30 PM - 6:45 PM: Registration + Networking 6:45 PM to 6:55 PM: Intro to WDS 7:00 PM to 7:10 PM: Intro to Zenika 7:15 PM to 8:15 PM: Learning to Design Systems for Scalability by Fion Sim, Zenika + Q&A 8:15 PM onwards : Networking + Phototaking + Clean-up

**Register here (subject to approval):** **[https://luma.com/mu4wsv8t](https://luma.com/mu4wsv8t)** *This is an in-person event. Successful Registration is subject to approval.* **ABOUT** **In association with [Women's Dev Singapore](https://www.meetup.com/women-devs-sg/), [Zenika](https://www.linkedin.com/company/zenikasingapore/) presents A Practitioner’s Perspective:** ​Scalability is often treated as a purely technical challenge — something to solve with the right architecture, tools, or infrastructure. In reality, it is just as much about how we think. In this talk, \*\*[Fion ](https://www.linkedin.com/in/fion-sim-8427741b0/)\*\*shares her journey of learning to design for scalability through real-world experience — navigating evolving requirements, growing systems, and the trade-offs that come with them. Rather than focusing on deep technical patterns, the session explores the decision-making process behind building systems that can grow sustainably. Through practical examples, she will reflect on: * How to recognise when scalability becomes a concern * Balancing simplicity vs. future-proofing * Breaking down systems into manageable, evolvable components * Learning from constraints, failures, and iteration This session is designed for developers who are early to mid in their journey, or anyone looking to strengthen their intuition around building systems that don’t just work today — but continue to work as they scale. **About the Speaker - [Fion Sim](https://www.linkedin.com/in/fion-sim-8427741b0/):** Fion is a fullstack web developer focused on building robust, scalable applications across the modern web stack. She has hands-on experience with frontend frameworks such as Next.js and Angular, and develops backend microservices using Node.js and Prisma. Driven by curiosity and continuous learning, Fion is particularly interested in how systems evolve over time — and how thoughtful design decisions can support long-term scalability and maintainability. 📍 **Venue:** This meetup is brought to you by Zenika Singapore, 20 Bendemeer Rd, #03-10 BS Bendemeer Centre, Singapore 339914. **NOTE: Successful Registration is subject to approval. Sign up here:** https://luma.com/mu4wsv8t **EVENT SCHEDULE:** **6:30 PM - 6:45 PM:** Registration + Networking **6:45 PM to 6:55 PM:** Intro to WDS **7:00 PM to 7:10 PM:** Intro to Zenika **7:15 PM to 8:15 PM:** Learning to Design Systems for Scalability by Fion Sim, Zenika + Q&A **8:15 PM onwards:** Networking + Phototaking **TERMS & CONDITIONS** * Zenika Singapore reserves the right to amend these Terms and Conditions at any time. * Although very unlikely, please note that Zenika Singapore reserves the right to cancel or reschedule the event if necessary. However, in case of a cancellation, Zenika Singapore will inform all attendees one day in advance and will endeavor to provide an alternative date. * Please note that photographs and/or videos will be taken at this event for marketing, publicity, and archival purposes. Should you have any concerns with your image being captured or used, please approach one of our staff members. * Zenika Singapore owns the sole copyright of all content. * You will be added to our mailing list upon registration of this event and will receive updates on our next events and open positions at Zenika.

​​​**Founders Running Club** (FRC) brings founders, investors, tech, creative people and startup enthusiasts together for weekly easy runs and networking. We like to be comfortable when we run and finish with coffee and conversations. Choose your pace or follow a pacer—pets, friends, family, are welcome. ​​​🗓️ Launched in San Francisco, July 16, 2022 🌍 Now in 50+ cities 📅 Running + Networking events + Community ​​​**Join the community** [http://foundersrc.com/chats](http://foundersrc.com/chats) Singapore Instagram http://instagram.com/frc_singapore ​​​**Global FRC**: Instagram [http://instagram.com/foundersrc/](http://instagram.com/foundersrc/) LinkedIn [http://linkedin.com/company/foundersrc/](http://linkedin.com/company/foundersrc/) Strava [http://strava.com/clubs/foundersRC](http://strava.com/clubs/foundersRC) Website [http://foundersrc.com/](http://foundersrc.com/)

👋 Hello AWS User Group Community! Join us on Wednesday, 29th April 2026, for our April meetup at the AWS Singapore Office, IOI Central Boulevard! Our speakers will share their experiences and insights from modernizing existing applications, designing enterprise agent architectures, and taking generative AI ideas from prototype to production. If you're experimenting with AI agents, exploring generative AI architectures, or simply curious about how others are bringing these ideas into real-world systems, this meetup is for you :) 📢 **IMPORTANT! Registration Information** To ensure a smooth check-in process, please take note of the following: ✅ ✅ Confirmed attendees will receive a confirmation email before the event titled *"**AWS User Group Singapore: Registration Confirmed for AWS User Group Meetup – April 2026**."* You must present this email at the Level 1 Concierge to gain access to Level 5 for attendance verification. 🚶 Walk-ins (those without a confirmation email) will only be considered if the venue has not reached full capacity. Priority will be given to registered attendees with confirmation emails. 🔒 Strictly enforced: No confirmation email = walk-in. Entry not guaranteed. 📅 **Date:** Wednesday, 29th April 2026 🕡 **Time:** 6:30 PM 📍 **Location:** AWS Singapore; 2 Central Blvd, IOI Central Boulevard East Towers, Level 5 🎤 **Meetup Track** **✅ Evaluating GenAI Applications in Production with AWS Bedrock Evaluations** **📌 Speaker: Vishesh Kumar, Principal Architect, AWS** Without evaluation, all GenAI is "taking shots in the dark." Learn the six criteria for effective GenAI evaluation frameworks and how Amazon Bedrock Evaluations bridges the PoC-to-production gap with built in and custom metrics. **✅ Solving Real-Life Problem using Agentic AI and AWS cloud** **📌 Speaker: Senthil Baskaran, Emerging Technology Architect** Parents in Singapore receive dozens of school event PDFs via ParentsGateway each term and manually re-entering every date, time, and location into their calendars is tedious and error-prone. One PDF upload, two taps, and every event is in your calendar — that was the goal. School Event Processor — an AI-powered web app that extracts calendar events from school PDF letters and adds them directly to Google Calendar. Built with Next.js 15 (App Router), TypeScript, Tailwind CSS, AWS Bedrock (Claude Sonnet 4.5), OpenAI GPT-4o as fallback, NextAuth v5 (Google OAuth), pdfjs-dist for client-side PDF rendering, and AWS Amplify for hosting, the app was designed to solve a common, everyday pain point for parents. **✅From Idea to Interactive Map: Building AWS Community Globe** **📌 Speaker: Jagateesvaran Rajoo\, Software Engineer \| AWS Cloud Club Core Team at SIT** In this session, Jaga will share the story behind AWS Community Globe, an interactive project designed to make it easier to discover AWS Community Heroes, Community Builders, User Groups, and Cloud Clubs around the world. He will walk through the idea behind the project, how he designed and built the experience, the tools and technologies used, and some of the lessons learned while turning a simple idea into a working community discovery platform. 💡 **Pro Tip:** Arrive early to avoid queues and secure your seat for the sharing sessions! Additional Highlights: 🍕 Pizza Time: Begin your evening with some delicious pizza at 6:30 PM, courtesy of our generous sponsor, AWS. Vegetarian and halal options will be available. 🍻 Post-Meetup Networking: Stick around for casual networking over drinks. Let’s forge new connections and continue the conversations! 🎁 AWS Swag & Promo Codes: Don’t miss the chance to win exclusive AWS swag and promo codes. Prizes will be drawn for attendees present at the event—so stay till the end! **Connect with us here!** Meetup: [AWS User Group Singapore](https://www.meetup.com/aws-sg/) LinkedIn: [AWS User Group Singapore](https://www.linkedin.com/company/aws-user-group-singapore/) Discord: [https://discord.com/invite/nkZagBG](https://discord.com/invite/nkZagBG) Please reach out to us at **[aws.usergroup.singapore@gmail.com](mailto:aws.usergroup.singapore@gmail.com)** for collaboration or other enquiries!

Hi everyone, We will be having our monthly meetup event on 2nd May Saturday at 2pm at Tiger Brokers office pantry area located at 1 Raffles Place, Tower 2, #35-61, Singapore 048616 Near Raffles Place MRT. Look for Mr Teddy Lee when you reach the place. My hp no. is 9645 7493. This is a networking and talk event for everyone interested in AI or ChatGPT and to discuss about the latest developments in the use of AI in Finance. You can join our LinkedIn group at https://www.linkedin.com/groups/14301790/ and also our Telegram group at https://t.me/+oJTJ-6fBKs04MTI1 Agenda 2pm Registration and networking session 215pm Sharing by Speaker from Tiger Brokers 3pm Sharing by Speaker from AAIA Mr Peter Ong 345pm Networking session 4pm End of event Note: Please bring along your name cards for networking purposes or exchange your LinkedIn profile is also possible.

Register at [bit.ly/gdgsg-apr26](https://bit.ly/gdgsg-apr26) \-\-\- Step into the next frontier of automation at our April meetup, where we shift the focus from static prompts to dynamic, goal-oriented AI Agents. As the ecosystem moves toward more autonomous and integrated systems, understanding how to effectively connect, manage, and orchestrate these models is becoming a vital skill for every developer. This month, we’re exploring the critical frameworks that allow agents to securely access external data and the architectural strategies behind building collaborative multi-agent environments. Whether you're looking to enhance your current workflows or architect complex new systems, join us for an evening of technical insights, peer networking, and community building. Let’s explore how the latest tools in the Google ecosystem are making intelligent, multi-functional agents more accessible than ever. Secure your spot now and join the conversation! #BuildwithAI #GoogleForDevelopers #GDGSingapore \-\-\- By attending this event, you acknowledge that you have [read and agreed to follow these security guidelines](https://bit.ly/devspace-security). We appreciate your cooperation in keeping our office and community space safe and welcoming for everyone. Let’s focus on building the future — safely and responsibly!

Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/cbus-hug-2026/

In this local meeting, you will discover knowledge that you can use to get over the past. The key to improving your personal motivation, self-confidence, and happiness is to get over your painful memories. When you become free of your past, you will be free from stress, anger, anxiety and depression. Studies show that negative emotions can affect your health. By being free of negative emotions, believe it or not, you will most likely even look younger, feel more energetic, and become healthier! Be sure to click on the red "Attend" button below to come to this local event. We look forward to seeing you there. This group is brought to you by the Dianetics and Scientology life improvement center.

It feels like we just saw each other 🤷. Join members of the local design and UX community for our monthly breakfast. For May we’re stopping in for Rooh’s popup breakfast/cafe concept. You know someone is getting the lobster yuzu croissant, and that’s not even the prettiest thing on the menu!.

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

Some trained COUNT volunteers work together once a month at RMH (http://www.rmhc-centralohio.org/volunteer.php) as Housewarmers (usually on the 1st Sunday from 1 – 5 PM). Some schedule other shifts at their convenience. You may try this out with less fuss by following a "Fast track" or go through the normal process. Fast track • Arrange a time to shadow a COUNT volunteer. Call Dave Nohle at 614-268-9558 (cell). • Show up and try it out. • Complete application, etc. later. Normal process • Complete an online application (http://rmhc-centralohio.org/volunteer/). • Attend orientation in advance. • At orientation you will complete forms agreeing to keep family/patient info private and allowing a background check and tour the facility. • Complete one training shift. Daily shifts are: morning 9 AM - 1 PM, afternoon 1 - 5 PM and evening 5 - 9 PM. • Schedule shifts online using the on the RMH scheduling system (http://www.volgistics.com/ex/portal.dll/?FROM=32895). The Ronald McDonald House (RMH) provides housing and meals for families with sick children. The Columbus RMH is the largest in the world with 137 rooms. COUNT has been volunteering there since May 2014. Housewarmers work with RMH guests to provide a home-like environment - greet, assist with family needs, answer phones, give tours, assist with checkin/checkout, prepare guest rooms after checkout, clean facility, laundry, restock supplies and staff the front desk. RMH Housewarmers volunteer at least one four-hour shift a month. All Housewarmers must complete an application and agree to a background check before they can be full fledged volunteers.

Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. **New to electronics or curious about tinkering?** You’re absolutely welcome. If you’re a beginner and want to experiment, I’ll have a couple of starter kits available so you can try things out—whether that’s blinking your first LED, putting something on a display, or experimenting with simple sensors. No pressure and no experience required—just an interest in learning and building. While we continue to pursue a more permanent venue for this Meetup, we’ll be using public library facilities based on availability. This session will be at the Worthington Park Library in the Olentangy Meeting Room.