Supply Chain Attack: The Polyfill.io Incident

In this video, we explore the Polyfill.io supply chain attack, where a trusted JavaScript library was silently turned into a malware delivery system affecting thousands of websites.
We break down how attackers injected malicious code through a widely used CDN and how users were redirected without any warning.
Finally, we explain how the attack was discovered and what it reveals about modern web security risks.

What you’ll see in this video:
1. What a supply chain attack is, explained simply?
2. How Polyfill.io was used in real websites worldwide?
3. How malicious JavaScript was injected and executed in the browser?
4. How attackers selectively targeted users and avoided detection?
5. Real-world impact: redirects, fake domains, and hidden scripts.
6.How researchers identified and analyzed the attack
7. Key security lessons for developers and cybersecurity professionals.

Happy Hacking:)

Видео Supply Chain Attack: The Polyfill.io Incident канала GhostPacketBreacher