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.

Google is making the biggest acquisition in its history. The company's parent company Alphabet is buying Wiz, the cloud security startup, for $32 billion

Alphabet will buy fast-growing startup Wiz for about $32 billion in its biggest deal ever, the Google parent said Tuesday, as it doubles down on cybersecurity to sharpen its edge in the cloud-computing race against Amazon.