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# 82 Bugs I Collected in a Year You Won’t Believe Made It to Production


- **Date:** Friday, Jul 11, 2025
- **Time:** 09:40–10:10 (30 min)
- **Room:** Stage 5
- **Event:** World Congress 2025
- **Tags:** cybersecurity, javascript, playwright, testing

## Recording

[Watch recording](https://www.wearedevelopers.com/videos/1581-82-bugs-i-collected-in-a-year-you-won-t-believe-made-it-to-production)

## Description

This past year, I made it my mission to collect every bug I found while using everyday apps and websites. From minor glitches to significant problems, 82 bugs somehow made it to production. These real-world examples are more than just interesting—they're also embarrassing mistakes that teach important lessons for making software more reliable and improving how we test it.

I'll explain the different types of bugs I found and what they reveal about common mistakes in software development. I'll also point out areas that are often missed but are crucial for your product's quality.

We'll look at the bugs, and I'll show you how to avoid them and improve your testing so these issues don't reach your users. Whether you want to make your code more reliable or improve your testing, this talk will give you practical tips for your next project. Join me to learn from the embarrassing mistakes even popular apps couldn't avoid—and take-home strategies to prevent them in your software!

## Speaker

### [François Martin](https://www.wearedevelopers.com/@francois-martin)

Senior Full Stack Software Engineer at Karakun


## Related talks at this congress

- [Debugging in the Dark](https://www.wearedevelopers.com/events/world-congress-2025/sessions/774-debugging-in-the) — Nishil Patel
- [Code Red: When Your Tools Turn Against You ](https://www.wearedevelopers.com/events/world-congress-2025/sessions/510-code-red-when-your) — Aaron Bray, Julian Totzek-Hallhuber
- [Why (most) software projects fail silently...](https://www.wearedevelopers.com/events/world-congress-2025/sessions/669-why-most-software) — Hendrik Lösch
- [Lessons learned from observing a billion API requests](https://www.wearedevelopers.com/events/world-congress-2025/sessions/845-lessons-learned-from) — Pratim Bhosale