Security Systems

Welcome back to our meetup in April. The date is right before the GITEX AI Asia conference held at the Marina Bay Sands Convention Centre. * **06:00 PM** Registration, dinner, networking * **06:30 PM** Talk starts Talk #1: Powering AI Agents/Apps with contextual data from more than just the default vector search Description: Most solutions showcase vector search as the default search mechanism to power AI applications. But it is often not the most effective solution. In this demo, we will showcase different search techniques and hybrid approaches for retrieving contextual data with MongoDB. Talk #2: Real Practical RAG, from Demo to Production - in a 10,000-person organization and an intelligence org Moving from controlled demos to real-world deployment exposed several challenges that are easy to underestimate. In clean demos, our prompts/queries are often well-formed and datasets are neatly curated, and we test the happy paths. But real users behave very differently. We observed clear gaps between how users express intent and how that intent is represented in the embedding space (leads to irrelevant/missed retrievals). This made retrieval design and chunking strategy critical: how documents are split, indexed, and ranked directly impacted whether the system could “understand” a query. Additionally, as the dataset scaled with many similar or overlapping documents, retrieval became noisier - every vector is similar to a lot other vector - making it harder to consistently surface the right information. These challenges highlight that building a production-ready RAG system is not just about ensuring our datasets and RAG method works, but also user's intent and behavior. TBA: We will have a 2nd speaker talking about AI in real use cases in intelligence orgs either in this meetup or the next meetup. More details for the 2nd speaker are still being prepared.

Join us for a casual walk along the newly launched Walking Trails @ CDC: Woodlands (Heritage Edition).This 4.4km route takes us from the futuristic Woodlands North MRT Station (Exit 1), through the scenic Woodlands Waterfront Promenade, and ends at the vibrant Marsiling Lane Market. For those who want to join in for dinner, we will ltake a bus to an aircon food court near Woodlands MRT Station (NS9/TE2). This walk is led by the organizer on a purely voluntary basis. There is no event fee—just come with a positive attitude and comfortable walking shoes! 🎁 **Earn Up to $15 in RedeemSG Rewards,While Stocks Last** By participating in this "phygital" trail, you can earn RedeemSG vouchers (valid at FairPrice, Sheng Siong, etc.): • $5 Voucher: Complete all 5 digital checkpoints along the route. • $10 Voucher: Spot and "collect" all 6 digital Ollies (the CDC mascots) hidden on the map! ✅ **Requirements to Earn RedeemSG Rewards** To claim the vouchers, you must: 1. Be a Singapore Citizen or PR aged 15 and above. 2. Have a Singpass account. 3. Have a CrowdTaskSG account. ❓ **New to CrowdTask?** Please read up and create your account before the walk here: www.crowdtask.gov.sg/quest/walking-trails-cdc [ PS: CrowdTaskSG is an official Singapore government platform operated by the Government Technology Agency (GovTech) ] 🎒 **What to Bring** • A fully charged smartphone with data connection (for the digital trail). • Water bottle and umbrella/poncho. • Mosquito repellent. ⚠️ **Disclaimer** By joining this event, you acknowledge that you are participating voluntarily and are responsible for your own safety and well-being. The organizer is not a professional guide and shall not be held liable for any injury, loss, or damage incurred during the activity. Please ensure you are in good physical health before joining. In case of heavy rain, the event may be postponed or cancelled; please check the Meetup comments for updates 1 hour before the start time.

This is not a typical networking event. We’re bringing together a small, curated group of founders, CTOs, and builders working on real products — to talk about what they’re building, what’s starting to break, and what they’re figuring out. No presentations. No sales pitches. No noise. Just meaningful conversations with people who are actually building. A curated gathering of founders, CTOs, and builders working across AI, SaaS, and technology. No pitches. No panels. Just real conversations.

🚨 ***FIRST TIMERS*** 🚨 * This is a 90-min Intermediate-level fitness bootcamp suggested for those who do HIIT/bootcamps/F45/etc at least 2x/week * Depending on weather/WOD, we rotate between 5 different spots, thus check comments/photos here on Tue 6pm for exact location & grouping * Rain-or-shine event: won't be cancelled. Held under shelter if it rains * RSVP closes on Tuesday 530pm. If you’re unable to attend, kindly cancel your RSVP by then, so our leaders have a more accurate count to plan the workouts more effectively * Recommended: Water, Mat, Gloves, Light weight/bottles for added resistance Cya then! 🔊 ***DISCLAIMER*** 🔊 Please take a minute to read the following information regarding your participation in FitFam workouts. By signing up for this session, you confirm that you have read and understood the terms and risks detailed in our Disclaimer and Release of Liability Agreement: https://drive.google.com/file/d/1MV9siOKELtbsSmCwwvp1rzJ-_GiAHGEW/view

AI is rapidly changing how software is built, but many developers are still unclear on how to move from using AI tools to actually building AI-powered applications and agents. This talk breaks down the key concepts every developer needs to understand, including large language models, tokens, embeddings, retrieval-augmented generation (RAG), and AI agents. AI 201 because we have presented a AI 101 last year more on AI Coding Tools and its concepts. The session will be delivered by three speakers from the Women Developers Singapore (WDS) community. The talk will be structured as a cohesive walkthrough: from how AI models understand language, to how they access data, and finally how developers can build production-ready AI applications and agents.

Hey AWS Security fam 👋 **Our goal remains the same: bring security and cloud practitioners together.** Security is wide; cloud teams move fast. Let us meet in the middle — share what is working, what is painful, and how we can ship safer, faster. Want to speak next time? We are lining up lightning talks and deep dives for upcoming meetups — 30-minute sessions, interactive by design. New voices welcome: operators, builders, blue/red/purple teamers, platform folks. If you have shipped it, broken it, or fixed it, we want to hear it. (Ping the organizers / DM us after you RSVP.) 🎤 **Speakers** ✅ **Building Visibility into Identity: Reporting with AWS IAM Identity Center** 📌 Alfred Koh - Senior Manager, Fintech This session explores how AWS services can be combined to build a practical reporting dashboard for AWS IAM Identity Center, using QuickSight to surface access patterns, governance signals, and operational visibility for security and identity teams. ✅ **Hardening Sensitive CI/CD Workloads with AWS Lambda** 📌 Bobby Lin - Manager, Application Security and DevSecOps, Fintech In this session, Bobby will share an architectural approach to decouple high risk workflows from CI/CD pipelines using AWS Lambda, reducing blast radius and improving security posture. The discussion will use GitLab based pipelines and focus on secure design patterns. ✅ **Automating Secure Access Across Your AWS Ecosystem** 📌 Deddy Gunawi - APJ Solution Architect, Okta In this session, Deddy will explore practical approaches to automating secure access across AWS environments through centralized identity and lifecycle management. The discussion will cover mapping user identities to cloud resources, automating provisioning and deprovisioning workflows, and applying attribute based access models to reduce manual credential management and over privileged accounts. 🧭 **Event Details** 📅 Date: Wednesday, 8th April 2026 🕡 Time: 6:30 PM – 9:00 PM 📍 Venue: AWS Singapore, 2 Central Blvd, IOI Central Boulevard East Towers, Level 5 🛂 **Registration & Check-in (Important)** Watch for an email titled: AWS Security User Group Singapore: Registration Confirmed for AWS Security Meetup – April 2026 Show this email at Level 1 Concierge to access Level 5 for verification. Walk-ins: Only if capacity allows. Confirmed registrations get priority. No confirmation email = walk-in; entry not guaranteed. 🙌 **What to Expect (and why it’s worth your evening)** * 30-minute interactive sessions — no death-by-slides * Live Q&A & show-and-tell — bring questions, tooling, and war stories * Security × Cloud crossover — incident learnings, IaC guardrails, identity, data protection, cost/risk trade-offs 🍕 **Agenda & Housekeeping** 6:30 PM — Pizza & drinks (vegetarian + halal options) Talks — Start right after dinner Networking — Meet builders, defenders, and platform folks 📸 Photos/recordings may be used for future promo Pro tip: Arrive early to skip queues and snag a good seat 🎁 Swag & promo codes — stay till the end for giveaways

🚨 **IMPORTANT – REGISTRATION IS REQUIRED VIA THE AWS SECURITY MEETUP PAGE** 👉 **Please RSVP here:** 🔗 https://www.meetup.com/aws-sg-security/events/313260322/ 📌 This event is hosted under the **AWS Security Users Group Singapore**. 📩 All attendees **must register** via the link above to receive a confirmation email and secure access to the venue. ❗ Registrations on other meetup pages will **not** be considered valid. **Hosted by AWS User Group Singapore x AWS Security Users Group Singapore** Hey AWS Community, April brings us another security focused AWS Meetup, hosted in collaboration with the AWS Security Users Group Singapore. Expect an evening of practical security discussions, real world lessons, and strong community energy at the AWS Singapore office. This meetup brings together cloud and security practitioners who are building, operating, and securing systems at scale. Security is broad. Cloud moves fast. Let us meet in the middle, share what works, what breaks, and how teams can ship safer and faster on AWS. Whether you work in development, operations, architecture, or security, this session is designed to leave you with ideas you can apply immediately. 📅 Date: Wednesday, 8th April 2026 🕡 Time: 6.30pm – 9.00pm 📍 Location: AWS Singapore; 2 Central Blvd, IOI Central Boulevard East Towers, Level 5 🎤 **Speakers** ✅ **Building Visibility into Identity: Reporting with AWS IAM Identity Center** 📌 Alfred Koh - Senior Manager, Fintech This session explores how AWS services can be combined to build a practical reporting dashboard for AWS IAM Identity Center, using QuickSight to surface access patterns, governance signals, and operational visibility for security and identity teams. ✅ **Hardening Sensitive CI/CD Workloads with AWS Lambda** 📌 Bobby Lin - Manager, Application Security and DevSecOps, Fintech In this session, Bobby will share an architectural approach to decouple high risk workflows from CI/CD pipelines using AWS Lambda, reducing blast radius and improving security posture. The discussion will use GitLab based pipelines and focus on secure design patterns. ✅ **Automating Secure Access Across Your AWS Ecosystem** 📌 Deddy Gunawi - APJ Solution Architect, Okta In this session, Deddy will explore practical approaches to automating secure access across AWS environments through centralized identity and lifecycle management. The discussion will cover mapping user identities to cloud resources, automating provisioning and deprovisioning workflows, and applying attribute based access models to reduce manual credential management and over privileged accounts. 📸 Kindly note that photographs and recordings captured during the event will be used for future promotional purposes. 🍕 **Agenda & Housekeeping** 💡 Pro Tip: Arrive early to avoid queues and secure your seat for the sharing sessions! 🍕 Pizza Time: Dinner starts at 6.30pm, enjoy pizza and drinks before the talks begin. 🎤 Talks start around 7.00pm 🍻 Post-Event Networking: Stick around to meet fellow builders, practitioners, and experts. 🎁 Swag & Promo Codes: AWS swag and giveaways await those who stay till the end! 🔗 Connect with us: Meetup: [AWS Security Users Group Singapore](https://www.meetup.com/aws-security-users-group-singapore/) 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) 📬 Enquiries: [aws.usergroup.singapore@gmail.com](mailto:aws.usergroup.singapore@gmail.com)

**For ages 13 and above.** This class is designed to train those who wish to be able to able to defend themselves as a modern day warrior. The class is exciting and brutally effective. Practitioners will learn how to fight seamlessly from stand up to the ground, using a mix of street style striking and kicking, takedowns, to ground grappling, even against a knife being drawn while on the ground. Whether it be one attacker or multiple attackers, participants will learn how to use relative positioning and the environment to defend and create the opportunity to escape. What if your attacker was to draw a knife or worst, a machete? You will learn to use street style weapons like knife, machete or stick to defend yourself, or improvised weapons like bags, chairs, umbrellas, bottles, hammers etc. No pre-requisites needed but generally an interest in martial arts. The classes consist of currently 7 topical series: ​ * Striking/Kicking Series * Gun Disarming Series * Ground Defence Series * Takedown Series * Knife Series * Control and Restraint Series * Tomahawk/Machete Series ### **Address** 144 Robinson Road, #05-01, Singapore 068908 ### **Schedule** Saturdays 430PM - 630PM ### **Booking Information** * Please contact **98225900** to find out how to book this class. * The instructor will reach out to you once you've booked the class.

**For ages 13 and above.** Systema is a Russian Martial Art founded by the late Colonel Mikhail Ryabko and Vladimir Vasiliev. Systema was designed to develop individuals in a combative style which upholds the intrinsic value of all human life. This is why it is non-destructive – even of one’s enemies. Through the use of simple exercises, breathing techniques and massage work, Systema helps you to build a strong mind and body. Here is what you can expect: **Warm ups** Class begins with warming up each of the systems of the body – from the breathing, muscular and nervous system, each component needs to be properly engaged. **Thematic studies** Fetching from a huge pool of drills and sometimes even crafting specialized ones, our instructors format a logical progression of the concept being shared. Depending on the ability of the class, the drills are modified to be at the optimal level for learning, with suitable modifications given to students based on their individual performance. **Application of concepts** After the thematic studies, some time is given for the students to apply the training – the intensity is decided upon by the students under the supervision of the instructor. At times, the instructor will request for the students to push themselves, while at other times they are there to taper in the sparring to a productive level. **Cool downs** The cooldowns are usually done in a way both the help the class recover from the higher intensity application section as well as to revisit the concepts again in a calmer manner. This helps to ensure everyone is reminded of the key points. Sometimes we do a little massage. **Training circles** At the end of every training session, we circle up to share a few words about the training. This tradition was handed to us from our founders and is an integral part of our training. ### **Address** Lor 23 Geylang, #03-05 37, Singapore 388371 ### **Schedule** Saturdays 10AM - 12PM ### **Booking Information** * Please contact **98225900** to find out how to book this class. * The instructor will reach out to you once you've booked the class.

**DISCLAIMER: NOT FINANCIAL ADVICE** Casual run of about 3.5km - 4km. Hais, seems like there isnt a a community run group on bitcoin in Singapore. Please visit below page to sign up (Dont pangseh hor). https://www.meetup.com/runningbitcoinsg It is the only way I can filter out the bots. There is always more things to learn about Bitcoin. One of it being low time preference. The group welcomes anyone who is interested in knowing more about saving in bitcoin or simply just want to join us to have a good run.

Prostate cancer is the most common cancer among men in Singapore. Most men have no symptoms in the early stages — and by the time they do, it may already be advanced. **Early detection saves lives. And it starts with knowing your risk.** This April, take the most important step for your health and join us for a free, expert-led talk by **Dr. Lim Huat Chye Peter** — one of Singapore's most respected urologists and founder of the Society for Men's Health (Singapore). **📅 Date:** Saturday, 11 April 2026 **🕑 Time:** 1:30 PM – 4:00 PM **📍 Venue:** Farrer Park Hospital, Connexion, #16-06 (Viv Hall) **💰 Admission:** FREE **If you're a man over 40, this talk is for you.** Most men avoid talking about their health — until it's too late. Don't wait for symptoms. Prostate cancer is highly treatable when caught early, but the window matters. This is your chance to get straight-talking, expert guidance in a relaxed, open setting where all questions are welcome. **What you'll learn:** * What prostate cancer is and how it develops silently * Who is at risk — and why men over 40 need to act now * When and how to get screened, and what tests to expect * Treatment options and the latest advances in urological care * How to have the conversation with your doctor — and what questions to ask Come alone, or bring a father, brother, husband, or friend. The men in your life need to hear this. **Seats are limited. This event is free — but your health is priceless. Register now before it's too late.**

**For ages 10 and above.** Krav Maga is a self defense system employed by military and law enforcement around the world (including Singapore) due to its effectiveness. Classes are designed around real-world scenarios, ensuring you acquire practical skills—like disarming an attacker wielding a knife—after each session. ### **Address** 95 Joo Chiat Rd, Level 3 & 4 ### **Schedule** Sundays 1230PM - 130PM ### **Booking Information** * Please contact **98225900** to find out how to book this class. * The instructor will reach out to you once you've booked the class.

Central Ohio Radio Enthusiasts—CORE—is an informal community for anyone enthusiastic or curious about radio—whether you're new to radio and want to learn or you've been tinkering for years and want to share. Ham radio operators, GMRS users, Meshtastic fans, software-defined radio nerds, makers, and technical and non-technical folks are all welcome. No experience required or expected. This month we have **WiFi HaLow: Introduction and Practical Use** with **Alex Barbur**. Details are are [core.radio](https://core.radio).

## **Columbus Bitcoin Meetup – Event** Join us for another great evening dedicated to Bitcoin, learning, and community. We will be gathering in the private room at Olentangy Brewery for an evening of conversation, education, and fellowship with fellow Bitcoiners. This special event will feature three guest speakers sharing insights from across the Bitcoin ecosystem. ### **Guest Speakers** **Lindsay Faust** Relationship Manager at River **Andrew Tilmann** CEO of the Midwest Bitcoin Summit **Carlos Estrada** Founder of Coin Vigilante In addition to speaking during the event, Andrew Tilmann will also be available for a meet and greet. This will be a great opportunity to ask questions about the upcoming Midwest Bitcoin Summit, taking place September 23 and 24 at the Columbus Convention Center. ### **Midwest Bitcoin Summit Discount** Early Bird pricing ends **April 1st**, but you can still save **21%** by using the promo code: **COLUMBUS** Use the link below to apply the discount: [https://tickets.midwestbtc.com/affiliate/columbusbitcoinmeetup/event/midwest-bitcoin-summit-2026/?promoCodeTask=apply&promoCodeInput=columbus](https://tickets.midwestbtc.com/affiliate/columbusbitcoinmeetup/event/midwest-bitcoin-summit-2026/?promoCodeTask=apply&promoCodeInput=columbus) ### **Event Details** This will be a three hour event, with speakers beginning just before 7:00 PM. There will be plenty of time afterward for networking, meeting new friends, and continuing the conversation. Food will be provided. We look forward to seeing you there! ***

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** GitHub Copilot is powerful, but what if you could scale from a solo AI assistant to an entire team of specialized agents working in parallel? This session introduces Squad: an open-source framework for multi-agent orchestration that lets you define teams of AI agents with specific roles, responsibilities, and expertise. We'll progress from Copilot basics to the Copilot CLI, explore how Agents add autonomy, and see how Instructions and Skills let you customize agent behavior. Then, the climax: a live demo where a Squad team of 3 agents (Lead, Developer, Tester) stands up and builds a working application in real-time, showcasing true multi-agent collaboration. Whether you're new to AI or exploring how to scale your use of Copilot, this session will show you what's possible when agents work as a team. **YouTube Link** TBD

WQC has weekly Thursday night social nights at the Westerville Java Central. Come and grab a coffee and connect with the community: low stakes, chill environment, and tasty drinks. No registration is required; come as you are.

Pay attention! We’re delaying a week for those of you who may be on Spring break and/or celebrating the holiday. Ok, no pancakes, but waffles-a-plenty. Join the local UX and Digital Design community for a casual monthly breakfast. Look for us upstairs!

**Connected Westerville Night of Networking** *April Edition: The Introduction Economy* You've been to the networking events. You've done the small talk. Collected the cards. Forgotten the names. And walked out feeling like you just wasted two hours of your life. The problem isn't you. It's the format. Most networking events put you in a room and tell you to figure it out. So everyone defaults to elevator pitches and business talk, and nothing real gets built. Here's the truth about networking that most people miss: Your network isn't just who you know. It's who thinks of you when they're talking to someone else. *That's* The Introduction Economy. And it only works when relationships are real. There's a reason people who come once keep coming back. It starts with seven minutes that feel nothing like networking. Then we open it up. Free networking. More conversations. More momentum. This is a room full of corporate professionals, entrepreneurs, business owners, creatives, and career builders in the Westerville and Columbus area. The mix is the magic. You might never do business with everyone you meet tonight. But someone in this room will think of *you.* **By name**. So, the next time someone needs exactly what you do, you get the recommendation. **April 14th. RSVP now.** **When:** Tuesday\, April 14th \| 6:15 PM \-\- 8:00 PM **Where:** Vineyard Community Center \| 6000 Cooper Rd\, Westerville\, OH 43081

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.