# How to crash someone's browser?

**URL:** https://forum.kirupa.com/t/how-to-crash-someones-browser/303647
**Category:** web dev
**Created:** [January 24, 2010, 8:40am UTC](https://forum.kirupa.com/t/how-to-crash-someones-browser/303647 "2010-01-24T08:40:55Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![NeoDreamer](https://avatars.discourse-cdn.com/v4/letter/n/ccd318/32.png) [@NeoDreamer](https://forum.kirupa.com/u/NeoDreamer)
#### Post date: [January 24, 2010, 8:40am UTC](https://forum.kirupa.com/t/how-to-crash-someones-browser/303647/1 "2010-01-24T08:40:55Z")

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There’s this Argentinian spammer that keeps on coming back to my site. He is smart enough to change his IP and come back to pollute my site. I wish to write malicious javascript to crash his browser. I am looking for the most CPU intensive javascript operations out there to clog up his CPU. Any of you know any good ones? Perhaps some prime number generators?