Hacktoberfest Meetup Sydney x Code For Sydney

Hacktoberfest 2026

Saturday October 10, 2026
10:15AM to 2:15PM UTC+10
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Darling Harbour Library Idea Space
1 Little Pier Street
The Exchange, levels 1 and 2
Sydney, NSW 2000
Australia
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Event Description

For this MeetUp, we are running an interactive Cybersecurity Capture The Flag (CTF) competition!

Your mission: Discover bots communicating over a virtual MQTT network, intercept and decode their encrypted messages, and interact with the final bot to claim victory.

Tech Stack: You can use any programming language supported by MQTT.

AI Tooling: AI assistance (e.g., ChatGPT, Claude, GitHub Copilot) is encouraged to help you solve challenges along the way!

There will be free swag courtesy of MLH / Hacktoberfest!!

Who can attend?

Locations have different requirements for who can attend. This location is open to the following:

Schedule

10:15 - 10:30 | Housekeeping & Setup
10:30 - 11:00 | Cryptography Introduction
11:00 - 12:00 | Hacking (Phase 1)
12:00 - 12:30 | Lunch & Pizza 🍕
12:30 - 14:00 | Hacking (Phase 2) & Wrap-Up

Additional Information

https://discord.gg/wPmp25Xnm5

Hosted by

Simon Bunker
From

Code for Sydney is a collaborative coding club where tech meets real-world impact.We gather to solve meaningful problems, experiment with code, and explore the possibilities of AI.

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