How To Not Get Hacked: Uncovering Web Vulnerabilities

About this talk

Security is often treated as someone else's problem — until it becomes everyone's problem. In this talk at Frontmania 2026 at Jaarbeurs Utrecht, we challenge the assumption that security falls outside the developer's remit by walking through real-world breaches from major companies and showing, through a live demo, how a web application can be compromised step by step. The session distils practical steps every JavaScript developer can take to reduce risk and ship safer apps without becoming a security specialist.

Key takeaways

• Why security is a frontend concern, not just a backend or ops concern
• Real-world breach case studies and what went wrong at the code level
• A live exploit walkthrough — seeing a real attack from the attacker's perspective
• Practical, low-effort security controls every JavaScript developer should adopt