Why VM-based obfuscation raises the cost of reversing JavaScript

Frontend JavaScript is inherently exposed, but different obfuscation strategies raise the cost of reverse engineering by different amounts.

We wrote a breakdown of how virtual machine–based obfuscation works, why it’s harder to reverse than traditional techniques, and the tradeoffs involved.

Disclosure: We built PrimeVeil, a JavaScript obfuscation tool, so this article reflects hands-on testing rather than theory.