Your Idea Matters!
AT&T Online Hackathon 2026

11 – 18 May 2026

Unlock your creativity and become the change-maker our world needs.
Join our online Hackathon where young minds discover challenges, spark innovations, and transform ideas into prototypes that shape the future.
Dive in, explore, and let your vision lead the way!

AT&T Online Hackathon 2026

11 – 18 May 2025

Unlock your creativity and become the change-maker our world needs.
Join our online Hackathon where young minds discover challenges, spark innovations, and transform ideas into prototypes that shape the future.
Dive in, explore, and let your vision lead the way!

Online Hackathon International

In May, as part of AT&T Software Symposium 2026 and celebration of 150 years of connecting we witnessed an incredible display of creativity, collaboration, and innovation during the international track of Symposium Hackathon.


Big Thanks to all the Mentors

A heartfelt thank you to all the incredible AT&T Mentors whose expertise and dedication made our event truly exceptional. By generously sharing their knowledge and guidance, they empowered students throughout their journey, offering invaluable tips and tricks to elevate their experience. Their support not only inspired confidence but also helped deliver products of outstanding quality and excellence. We deeply appreciate their commitment to nurturing the next generation of talent and making this event unforgettable.

Among other mentors mainly from TechDev Europe, I would like to name those, whose help stood out significantly from the rest:

Jan Michalčák – The Tech guru, for being the mentor lead, code reviewer and in the end even the Jury member

Jiří Višinka – for assistance in preparation, preparing the official communication, the web design and behind the scenes work during the Jury session and presentations.

Petr Novák – for assistance in preparation, valued ideas, mentoring and taking the uneasy jury duty

Daniel Tománek – for his valued ideas, HW related mentoring, maintaining the jury voting mechanisms and his jury duty

Zuzana Brančová – for assistance with preparation, multiple inputs, coordination with external partners, paperwork and communication.


After a week of hard work, brainstorming and prototyping of 13 teams from Czech, Ukraine and India, the jury faced the difficult task of selecting the top projects from a pool of outstanding submissions. With every team presenting unique ideas and creative solutions, it was no easy task to choose the winners. We are excited to announce the top three winning teams:

🥇 1st Place: YoGurts
Lyceum & Business Academy, Orlová, CZ

TrustCall
A real-time voice scam detection pipeline transforming Discord audio through Whisper and BERT-tiny, with Gemini adding the final layer of intelligence.

🥈 2nd Place: Two Man Mission
High School of Film, Media and Computer Tech, Zlin, CZ

LockDin
An anti-doomscrolling concept that rewards screen time only after AI-verified real-world challenges are completed. Creative, timely, and refreshingly practical, it turns healthy habits into a smart digital incentive.

🥉 3rd Place: Správci Silnic
Technical High School Purkynova, Brno, CZ

Poseidon
Local-first phishing defence engine built in Rust, enhanced with a fine-tuned Gemma 3 1B model using QLoRA and powered by eight threat-intelligence feeds.


  CHC Agri-Drones — 3D Desktop Drone Simulation
A 3D desktop drone simulation that brings live OpenStreetMap terrain data into an interactive environment, creating a strong foundation for realistic flight testing and visualization.

Clarior Threatly — Mobile Phishing Awareness App
A mobile phishing-awareness app that combines gamification, social interaction, and AI-driven scenarios to make cyber education more engaging.  

n+1 Phishi — Czech Phishing Awareness Platform
A phishing-awareness platform tailored for Czech users, featuring token-based learning exercises and an AI chatbot for interactive guidance.  

Revidu ReSource — Chrome Extension Fact-Checker
A Chrome extension that checks online claims inline, using Gemini-powered analysis to highlight potentially false information directly in the browsing experience.

Scriptum Chaos SilverShield — Android Scam-Quiz App for Kids
An Android app designed to teach children about scams through quizzes, AI-generated interactions, and a playful Tamagotchi-style companion.

IPv6 Hackers GuardLink — Python Phishing URL Classifier
A phishing URL classifier built in Python with Flask and Telegram integration, combining multiple technical signals to assess suspicious links.

Until next time
As we wrap up this year’s Hackathon, we want to thank everyone once again for being a part of this incredible journey. The creativity, dedication, and passion of all involved made this event truly unforgettable. While this chapter comes to a close, we’re already looking forward to the next opportunity to innovate, collaborate, and tackle new challenges together.

Sincerely

Martin Branc, Associate Director of Technology
Chairman of Symposium Hackathon Europe


About Hackathon

A Hackathon is a week-long event where you explore a dedicated track, identify a real-world challenge, and dive into creative brainstorming sessions to craft innovative solutions. With guidance from AT&T mentors, you’ll transform your ideas into a tangible demo and present your project to a panel of experts.

Discover, Create, Innovate

Discover & Plan

  • Brainstorm Ideas
  • Define your Goals
  • Create a Roadmap

Start your Hackathon journey by exploring the chosen track. Look around to identify a problem that sparks your curiosity and could use an innovative fix.

Build & Test

  • Develop the Core
  • Divide tasks
  • Test As You Go

Once you’ve found your challenge, dive into brainstorming. Let your creative ideas flow as you pick an answer that can make a difference.

Design & Prototype

  • Keep It Simple
  • Visualize Your Idea
  • Focus on Foundations

Transform your concept into reality by developing simple, working demo prototype that showcases your innovative solution.

Pitch & Present

  • Craft a Story
  • Demo Your Product
  • Highlight Value

Whether you demo your product live or through a recorded presentation, highlight the value and thought process behind your approach.