Google Cloud introduced a multi-party compute service in New York on October 28, 2026, splitting private keys into fragments so transactions can be authorized without the complete key ever being assembled in one place. The shares can be held across separate environments, including a customer’s on-premises hardware, Google Cloud, and other cloud providers. The service supports threshold schemes such as 2-of-3 and 5-of-7, and includes a policy engine within Google Confidential Space to enforce spending limits and approved recipient lists. It targets banks and institutional financial clients, is currently in private preview, and is expected to become generally available in early 2027. Alphabet already uses the technology to protect assets on the Ethereum and Solana blockchains, while Google Cloud’s entry intensifies competition with Fireblocks and BitGo.
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