According to CoinMeta, cloud security company Upwind has completed a $400 million financing round, led by Bessemer Venture Partners, with existing investors such as Greylock Partners and Craft Ventures also participating. The company is valued at $3.8 billion. Upwind provides security protection for enterprise cloud infrastructure, detects malware and suspicious activities, and this year it has expanded its platform to address security risks related to AI. The new funds will be used for engineering research and development, as well as the construction of sales and marketing teams.