Wiz's record $32 billion sale to Google, its biggest acquisition ever, rewards early investors like Sequoia Capital and Index Ventures.

Google on Tuesday signed a "definitive agreement" to acquire New York-based cloud security startup Wiz for $32 billion in an all-cash deal. In July, CNBC reported that Wiz walked away from a potential $23 billion acquisition by Google and announced to employees that it would pursue an IPO instead.

The acquisition could make the Silicon Valley giant a bigger force in cybersecurity, and arrives months after an earlier round of talks collapsed.