Summit Partners, an alternative investment firm, led a $90m Series A round in Halborn, a blockchain security firm, with participation from Castle Island, Digital Currency Group, Brevan Howard, Third Prime, Sky Vision Capital, and Fenwick. "With security vulnerabilities dominating the crypto news headlines, and over $1.5bn in financial losses from DeFi hacks in 2022 to date, the demand for Web3 security is only growing. Funding from this Series A will be used to expand our global team of offensive security engineers and build our Halborn Labs division, accelerating our robust pipeline of SaaS security products," Steven Walbroehl, Halborn co-founder and CISO.