Cybersecurity

# **Hck4G Meetup #0x15** ## **"Stop Spying On Me!" – Disrupting Adversarial DNS Queries** Register here: https://events.humanitix.com/hck4g-meetup-0x15-stop-spying-on-me-disrupting-adversarial-dns-queries ### **Event Overview** Hck4G returns with Meetup #0x15, continuing our mission to build practical, community-driven cybersecurity capability that provide legitimate pathway into cybersecurity for young people. This session explores the hidden risks behind everyday internet usage; specifically, how online advertising and tracking ecosystems have evolved into security and privacy threats, and what defenders can do about it. ### **Talk Overview** Online advertising is no longer just an annoyance — it has become a significant attack surface for both individuals and organisations. Ads and trackers consume large amounts of data, profile users, and are increasingly leveraged for malware delivery and cybercrime activity. This session follows the journey of building a whole-of-home advert and threat blocking system using a DNS blackhole, highlighting both the effectiveness of DNS filtering and the ongoing challenges defenders face. What starts as a simple setup quickly becomes an arms race, as modern devices and operating systems bypass traditional controls using: * **Hard-coded DNS resolvers** * **DNS over TLS (DoT)** * **DNS over HTTPS (DoH)** Attendees will gain practical insight into how DNS filtering works, why it remains relevant, and how encryption is reshaping both privacy and network security. ### **Speaker** **Dr Joel Panther** Joel is a cybersecurity researcher, offensive security specialist, and educator with over 15 years of experience across system administration, penetration testing, and security consulting. In his consulting work, Joel specialises in offensive security practices, including vulnerability assessment, penetration testing, and security training. His approach bridges technical execution and strategic insight, combining hands-on exploitation techniques with a broader understanding of organisational risk. Joel is an active contributor to the cybersecurity community as a speaker, mentor, and educator. He regularly presents on topics spanning security, privacy, and ethics. His work often explores the intersection of cybersecurity and societal impact, with a particular focus on emerging threats in areas such as artificial intelligence and cybercrime. His PhD produced a framework for designing dynamically generated penetration testing laboratories, and his current research focuses on offensive security skills development. Joel is deeply committed to education and workforce development, supporting initiatives that strengthen pathways into the cybersecurity profession. He has led the design and delivery of CyberCX’s security testing training program, which provides early-career professionals with a structured blend of formal training and practical, real-world experience. When he’s not in the basement hacking, he can be found at cybersecurity community events across Australia. Known as one of the top offensive security education voices in Australia. *** ### **Who Should Attend** * Cybersecurity practitioners (offensive and defensive) * Network and system administrators * Privacy-conscious technologists * Students and early-career professionals * Anyone interested in practical, real-world cyber defence *** ### **Event Details** * Date: 20th April 2026 * Time: 5:30pm - 8pm * Venue: RMIT University – Building 80, Melbourne * Online: Livestream available * Cost: Free (registration required) *** ### **Event Schedule** * 5:30 – 5:40 PM: Welcome, Intro & Networking * 5:40 – 6:00 PM: Networking & Cyber pizzas 🍕 * 6:00 – 6:45 PM: Presentation * 6:45 – 8:00 PM: Discussions and Q&A ### **Thanks to Our Sponsors** RMIT University – World-class certificates, degrees, Masters and Postgraduate programs BridgeLynk.io – Attack-informed cybersecurity services for NFP, SMB and Enterprise CyLynk.com – Job-ready cybersecurity training led by expert coaches *** ### **What to Expect** * Practical, real-world cybersecurity insights * Community-driven learning and discussion * Networking with peers across experience levels * Food and refreshments (in-person attendees) *** ### **About Hck4G** Hck4G is a not-for-profit organisation focused on disrupting the human impact of cybercrime through awareness, education, and community capability building. Diversion - Victim Support - Community Education.

**Skeptics Cafe.** Vic Skeptics Pub Night - Third Monday of every month. Skeptics Café will be held in the Function Room at [The Stolberg Hotel](https://stolberg.com.au/), 197 Plenty Road, Preston. Each month, Victorian Skeptics hosts a social night in the pub. We get together for dinner, drinks and good conversation with like-minded individuals. We have a different speaker each month. Speaker and topic to be announced. **Start Time:** 6:00pm for dinner and a chat. 7:30pm for beginning of the talk. **[Vic Skeptics](https://vicskeptics.wordpress.com/events/)** \- \- **[Australian Skeptics](https://www.skeptics.com.au/)**

**Gain The Confidence to Be Unstoppable! Free Class.** How to Achieve Self Confidence! Without question, self confidence is the key to success. It determines how many of your goals you achieve in life and has an enormous impact on your happiness. It affects how people perceive you, your career achievements, your ability to take risks or try new endeavours, as well as your overall attitude toward yourself and others. Self Confidence is something most people would like to have more of, but aren't sure how to get. Did you ever feel more certain of yourself in the past? Would you like to raise your self confidence ? To increase self confidence, you have to understand what reduces it. If you know why this happens you can reverse the situation and rebuild your self esteem. Self Confidence is self-determinism. One's belief in one's ability to determine his own course. As long as one has that, he's go the universe in his pocket. - L. Ron Hubbard. This day you are able to Learn a few things about: • The true source of security in life. • How self-confidence, self respect and self trust interrelate, and what you can do to rehabilitate them. • The exact steps to become more competent in whatever you do. Today's free class will put you into a good position to help you achieve a new level of self-confidence, accomplish more and progress towards a higher level of personal survival. Free parking, Free entree *** Todays free class is open to all people of goodwill and is held at the Life Improvement Centre located at Scientology. Our meetup classes contain universal knowledge that is applicable to all of us and can and is used by anyone of any faith as well as by those with no faith. Our meetups contain TOOLS for better living and they will assist you greatly in achieving your goals! These practical tools can be used straight away!

Please note that **this event is not open for photographers** (no option to bring Camera/GoPro or tripod). I will be taking photos of people with the Milkyway. Cameras and tripods aren’t allowed due to past accidents that led to damaged cameras/lenses and injuries in the dark. We have done over 200 Milkyway events. Please read the group rules before signing up. Please follow these two steps to confirm your spot: Step 1: Please RSVP to this event on meetup. Step 2: Please get your ticket on Trybooking ($20 - Early Bird, $25 - Regular): [https://www.trybooking.com/DLMZV](https://www.trybooking.com/DLMZV) We will scan Trybooking tickets at the meeting point. Please note that Trybooking tickets will only be refunded if the event is moved or cancelled. Trybooking Tickets are non-refundable. There is no option to also transfer the ticket to a new date. Payments are managed through Trybooking and not Meetup. You will see an **"Unpaid" status on your RSVP**. The only thing you need is the Trybooking ticket which you will receive by email. **Meeting Point**: Let's meet in the Corner of Spencer Street and Bourke Street (Station Side - Near the steps) at 6:10 PM and head to one of the **premium locations** (100km away from Melbourne). Driving to the destination is not an option for any of our stargazing events. We should be back in the CBD around 11:30 PM. **Meeting Point Photo**: [https://bit.ly/2SkyVL2](https://bit.ly/2SkyVL2) Please carry a warm jacket as the temperature is expected to be around 12-13°C. Please carry takeaway dinner as there are no food options at the destination. **Cost:** Organizer Fee: $20 - Early Bird, $25 - Regular Public Transport: Free for the month of April Taxi/Uber: $50 (In an unlikely event where Vline services are cancelled ) Photos: All the images will be uploaded to our Facebook Group (Explore Melbourne) - [https://www.facebook.com/groups/exploremelb](https://www.facebook.com/groups/exploremelb) and meetup. I take one solo photo for everyone with the Milkyway. These events are not aimed at photographers. Location: For the safety of people attending the event and flexibility to change location at the last minute based on the weather forecast, we will only share the location details with people at the meeting point. For the safety of people attending future events, please do not share the Milkyway location with anyone. Also, please do not tag the location when sharing photos on Social Media. The Milky Way Galaxy is one of the most interesting naked eye sights in the night sky. We live under light-polluted skies, and to see a glimpse of the Milkyway, we need to travel outside the city. We run Milkyway events near Melbourne (40-50km away) and events in premium locations (over 80-100km from Melbourne CBD). We will mention premium events on the title of the event. Many Solo and some group photos from previous events: [https://drive.google.com/folderview?id=1F0fE1-s4mkkNIi1oATIVBE3I5riDTRO3](https://drive.google.com/folderview?id=1F0fE1-s4mkkNIi1oATIVBE3I5riDTRO3) Please follow us on Social Media for photos, videos & updates: [YouTube](https://www.youtube.com/@explore-melbourne) \| [Facebook Page](https://www.facebook.com/exploremelb) \| [Facebook Group](https://www.facebook.com/groups/exploremelb) \| [Instagram](https://www.instagram.com/xpmelb/) \| [TikTok](https://www.tiktok.com/@exploremelbourne) \| [ExploreMelbourne.AU](https://exploremelbourne.au/) Explore Melbourne is the largest meetup group in Australia. We have seven simple rules in place to protect our community and for everyone to have a positive experience. ❌ **Not a dating group!** – We’re here to make friends, not find soulmates. No flirty business, please! 📵 **No phone numbers**, please! – Feel free to swap social media if both parties are cool with it, but let’s keep our digits private. Please **don’t add people to WhatsApp or other groups**. 🔞 Our events are only **open to people aged 18 and older**. 📢 Please **do not advertise other events or groups**. 😅 **Don’t be a social octopus!** – Give people space to chat with others. Please don't be clingy. 🚗 We **don't allow carpooling** due to safety incidents/our public liability insurance not covering motor related accidents. 💰 **No sales pitches!** – No selling, no MLMs, no pyramid schemes, no “life-changing mentorship” offers—let’s keep things scam-free. By joining this event, you’re giving us a virtual pinky promise 🤝 that you’ll follow the rules. Break them, and—poof!—you’re out for good. No second chances, no do-overs. Let’s keep it fun, friendly, and drama-free! **Liability Waiver:** The organizer of this group cannot accept any liability for any loss, damage, injury, or accident to participants or their property at this event. By participating in this event, you're taking responsibility for your safety and well-being. By joining this event, you agree to the liability waiver mentioned here: [https://exploremelbourne.au/explore-melbourne-liability-waiver/](https://exploremelbourne.au/explore-melbourne-liability-waiver/)

A mix of dance classes, connections & laughter! We love offering a diverse range of moves to keep things fresh and exciting, and it’s always amazing to see our dance community connecting on and off the dance floor. It’s all about coming together, learning, and having fun! Brighton Beach Bowls Club 2B South Rd Brighton 7:00 pm - 9:30 pm Foundation, Beginner & Intermediate levels $25 CASH or PAYID

$29 per person for 2 hours of training (includes table hire) ## 🏓 MELBOURNE TABLE TENNIS COACHING @ MSAC Ready to seriously improve your table tennis — or finally start the right way? Join our **ongoing in-person group coaching sessions at MSAC**, where you’ll train in a structured but fun environment with players who come regularly, as well as new faces every week. Our sessions are designed for **both total beginners and advanced players.** You don’t need experience — and you won’t be bored if you already have it. ### What to expect * ✅ **10–15 players per session** * ✅ **2 experienced coaches on court** * ✅ **Structured drills + match play** * ✅ **Individual feedback based on your level and goals** * ✅ **A welcoming group that trains regularly** You’ll work on **technique, footwork, consistency, tactics, and real match situations** — not just hit balls randomly. We organise the group so everyone is challenged at the right level. ### Why people love these sessions * Ongoing training with a real community * Fast improvement, not just social play * A great way to **move, learn, and make friends** * Fun, supportive atmosphere with serious coaching behind it Whether your goal is to **learn from scratch, get fitter, sharpen your skills, or start competing**, this is a perfect place to train. ### What to bring * 🏓 **Bat/paddle** (if you have one — if not, we’ll provide it) * 👟 **Sports shoes (runners)** * 👕 **Comfortable sports clothes** * 💧 **Water bottle** * 🧴 **Small towel** Grab your paddle, bring your energy, and come hit with us at MSAC. Please send me an email to: p.tretinik@gmail.com to confirm attendance. This helps me to book enough table for a smooth session. NOTE: If this is not your first time coming to this meet up, the cost is $36 for the whole 2 hours.

**\*\* NEW VENUE \*\*** Room 080.02.002 at RMIT (Building 80) - 445 Swanston St, Melbourne **\*\* NEW VENUE \*\*** [Discord Event Info](https://discord.com/events/1347056412529791047/1477841544907325591) **Practical TLS Exploitation** - **Leo (@flerm_)** In this talk, I'll break down a well known TLS attack with a live demo, walking through how it works under the hood, the exact technical conditions it needs to succeed, and how to quickly assess whether a TLS finding is an academic curiosity or a real risk worth exploring. **Pwning Redis with Really Dumb Bugs** - **joseph** **(skateboarding dog)** At the end of 2025, members of skateboarding dog participated in the zeroday.cloud 0-day competition, successfully targeting post-auth Redis, a popular database software. In this talk we discuss the discovery and exploitation of several of the bugs we found that lead to remote code execution. **Streaming** If you can't attend the event in person the talks will be streamed in the "ruxmon-stream" voice channel in the Ruxcon Discord in the day of the event! (join now by clicking here: [https://discord.gg/g2CpEbkXmM](https://discord.gg/g2CpEbkXmM)

Join us for a relaxed street art walk through Melbourne's CBD, exploring laneways, murals, and hidden creative spots while enjoying easy, natural conversation along the way. If you love photography, bring your camera or smart phone (charged) to snap some fun photos along the way. We often pose in front of our fave artworks. Be prepared to be silly with me 🤪… (optional of course) This event is about moving at a comfortable pace, noticing what’s around us, and letting conversation unfold organically as we walk. There’s no need for art knowledge - curiosity is more than enough. The walk has a **light structure to help things flow**, but nothing rigid. You’re welcome to chat as much or as little as you like and enjoy the experience in your own way. After the walk, there will be the option to stay on for dinner nearby for anyone who’d like to continue the conversation (completely optional). This event is best suited to adults **approx. 25–50 who are young-at-heart** and enjoy exploring the city, being outdoors, and connecting through shared experiences. Strict age limit = 18+ Recommendation: Download the "Street Art Cities" app which we will use to hunt down the art. Please comment below if you're keen to stick around for dinner too. Stay updated in our WhatsApp group here: https://chat.whatsapp.com/EwT1BMFaCSJ32cfApGYt8U

The MLAI Meetup is a community for AI researchers and professionals which hosts monthly talks on exciting research. Our format is: * 6:00 - 6:20: Socializing * 6:20 - 6:40: Announcements and AI news * 6:40 - 7:40: Talk(s) and Q&A * 7:40 - 8:00 Networking * 8:00: Head to the nearest pub for dinner Joint event with the Statistical Society of Australia! **Felicia Bongiovanni: "Inferring Time of Infection Based on Antibody Data Through a Hierarchical Bayesian Framework"** **Abstract:** Time-since-event prediction is a powerful tool to reconstruct histories of an event. It is commonly used in biomedicine to predict the beginning of tumor growth, to predict how long ago someone was infected with a disease, and even to predict the time since death for criminal investigations. Inference through Bayesian statistics and mathematical modelling can allow for time-since-event prediction and provide insight into the mechanisms driving an event. Machine learning is also used for time-since-event prediction but lacks the mechanistic insight Bayesian inference can provide. However, Bayesian inference, especially through Markov Chain Monte Carlo methods, can be computationally expensive and time-consuming. In this talk, I describe a method for combining Bayesian inference with machine learning to improve computational efficiency while also maintaining mechanistic insight. This is demonstrated through the case study of estimating time-since-infection using antibody data. **Speaker bio:** Felicia is a PhD candidate at The Walter and Eliza Hall Institute of Medical Research where she is conducting mathematical modelling of the immune response to understand more about infectious disease dynamics. In another life, she was a data analyst for the National Health Funding Body in Canberra through the Australia Bureau of Statistics Data Graduate Program.

Join us this month for a panel with PMs who have experience shipping and working daily with Ai. Bring your stories and questions as there will be plenty of time for Q&A. **Our Panel** * [Daragh Kan](https://www.linkedin.com/in/daraghkan/) \- Head of Product at Cuttable * [Dave Slutzkin ](https://www.linkedin.com/in/daveslutzkin/)\- Co\-founder and CEO at Cadence * [Melissa Cupples](https://www.linkedin.com/in/mcupples/) \- Head of Product \(AI & Automation\) Doors 6pm Start 630pm Thanks to our fabulous hosts for our location **InvestorHub.** [InvestorHub](https://www.linkedin.com/company/invhub/) is a Melbourne-based scale-up with the mission to make being listed a superpower. Our software allows listed companies in Australia and the UK to manage their end-to-end investor relationships, from their investor-facing website, a detailed investor CRM, analytics, and more. We're [hiring](https://investorhub.pinpointhq.com/) for Product Managers, Product Designers, Engineers and more right now! If you're interested in co-sponsorship please let us know. Some beverages will be provided but right now it's BYO food.

Come along to share ideas, learn together different techniques and Public Speaking, Presentation and Leadership skills. Public Speaking give you confidence and can be used as a marketing tool to attract clients and increase sales to your Business. All skills levels are welcome. People can practice Public Speaking presentations in a safe and nice environment with other members of the group.

Hi Radiant Ladies, Technology is growing so fast. Do you sometimes feel a little left behind? Or wonder what your grandkids are talking about when they mention AI? 😄 Come and join me for a relaxed Coffee & AI Afternoon at Mercure Hotel. I’ll show you a few simple, practical, and creative ways you can use AI in everyday life — to save time, spark ideas, and even have some fun. No technical skills needed. Just curiosity. Please bring your phone (fully charged!) and your beautiful self. We’ll enjoy coffee, learn together, laugh a little… and stay for dinner at Mercure afterwards for those who would like to. Let’s explore something new — together. 🌸 🅿️ Parking Info: If you’re coming from Doncaster Rd, take the third exit at the first roundabout to find the hotel car park. You’ll get 3 hours of free parking.

**Melbourne Python's Meetup April 2026!** Join Melbourne’s Python community for another night of learning, sharing, and connecting. Whether you’re just starting out or you’ve been coding in Python for years, our monthly meetup is the perfect place to learn something new and connect with fellow developers. This group is for developers, data scientists, web programmers, and anyone passionate about Python. 📅 **When:** 5:30 PM, Thursday, April 23, 2026 📍 **Where:** Judo Bank, Queen and Collins Building Level 26/376-390 Collins St, Melbourne VIC 3000, Australia 👉 [https://maps.app.goo.gl/A9JQTYGrMqGn8AzAA](https://maps.app.goo.gl/A9JQTYGrMqGn8AzAA) **Note:** The entrance is next to Rustica Cafe. Press level 26 when you arrive, and you'll find us there! **Agenda for the Evening** **5:30 - 6:00 PM**: Networking **6:00–6:10 PM** : Welcome and logistics 🎉 **6:10–6:35 PM** - **Talk 1:** Geoff Matheson - Learning Specialist Heathmont College/Digital Technologies Subject Matter Expert at Department of Education on Streamlit in the Secondary Classroom. In this session, Geoff will share his experience using Streamlit and GitHub Codespaces to teach Python to Year 10 and VCE Data Analytics Year 12 students, covering what made it work, the obstacles to watch out for, and how quick-reward tools can drive engagement in secondary education. **6:35–6:45 PM**: Break – Connect with someone new! **6:45**–**7:45 PM** - **Talk 2:** **EMPLOYER'S PANEL.** HR staff from some of the city's biggest Python companies will be taking questions about the Python job market here in Melbourne: We've got Bureau of Meteorology for science and government, MYOB and JudoBank for data/finance, and Kogan for ecommerce. Here's your chance to ask anything you've been wanting to know. **8:00 PM**: Event concludes 🌟 **Special Thanks** 🌟 A huge shoutout to our sponsors **Judo Bank** and **AWS** for making this meetup possible. Your support means the world to us! **Interested in Speaking or Sponsoring?** We’d love to hear from you! Email us at **melbournepython@gmail.com** or fill out our speaker interest form at https://forms.gle/S5T1SL4ULY5aogf47. We can't wait to celebrate Python and the incredible Melbourne community with you. See you on April 23! 🎉

If you are interested in selecting investment choices for your 401(k) or other workplace savings plan, minimizing your income tax liability, or identifying the most effective investments for your brokerage account, we are the group for you. We are a local chapter of Bogleheads, whose investment strategy can be found here: https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy Or you can peruse the Boglehead forum here: https://www.bogleheads.org/index.php I look forward to seeing you there. Mark Vonder Haar

AI is changing how art is made. But when does it stop being your work and start being the machine’s? This month we're going to be doing a panel with with digital image, music, and written word artists, talking about at what point, while using AI in the creation process, does the work become not the artist creation? We encourage audience participation during this event that will be moderated by Chris Slee. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services) Sign up also accessible via [Transform Labs Luma](https://luma.com/55umjqta)

Bienvenue! Columbus French Conversation group invites you to our Saturday morning French conversation club. Expect a casual and welcoming atmosphere in which to learn french! I will bring my laptop so we can look up new vocabulary as needed! The venue is a beautiful French restaurant so you can really get into the zone :)

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

**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

Main Library, Meeting Room 2B Join us for a welcoming evening of reflection, gentle music, and meaningful conversation. We’ll begin with a short grounding moment, followed by a brief reading from spiritual or philosophical traditions, and an open reflection circle where participants can share (or simply listen). Libera Animae is an interfaith community focused on inner growth, creativity, and authentic connection. All backgrounds are welcome.

**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