Google Previews Multi-Party Computation Security Service for Crypto Custody

Google announced a dedicated institutional security platform called Google Multi-Party Compute (MPC) at its digital assets symposium in New York on Oct. 28 ¹. The technology is designed to help financial entities safeguard and transfer digital assets and tokenized instruments by dividing private keys into fragments across distinct operating environments ¹.

Currently in private preview, the custody infrastructure is undergoing tests with institutional design partners, while parent company Alphabet has deployed the framework internally to secure digital holdings on the $ETH and Solana networks ¹. Commercial availability is slated for early 2027, with pricing yet to be announced ¹. Although the infrastructure is built to support future post-quantum cryptographic standards, its immediate objective focuses on mitigating credential theft and preventing unauthorized outbound transfers ¹.

Institutional Push Toward Secure Custody

The initiative addresses persistent security vulnerabilities that have created severe losses across the sector ¹. According to Chainalysis, compromised private keys drove 43.8% of all stolen cryptocurrency value in 2024 ¹. Data compiled by DeFiLlama shows cumulative exploit losses across blockchain networks reached $16.69 billion by June 2026, with roughly 40% tied directly to exposed private keys ¹. Recent high-profile breaches include a $25 million exploit at stablecoin protocol Resolv in March and a $32 million credential compromise affecting Humanity Protocol in June ¹.

Google Cloud director of digital assets strategy Rich Widmann noted that regulated entities require scalable architecture to protect client funds as tokenization gains enterprise traction ¹. The new service packages signing policies, multi-party key generation, and recovery functions into an off-the-shelf platform, expanding beyond existing modular offerings such as Google Cloud Key Management Service and Cloud HSM ¹. This institutional focus aligns with broader regulatory pressures across jurisdictions, including proposals such as the SEC custody rule overhaul. At the time of writing, $BTC traded up 1.7% over 24 hours at $81,317, while ether hovered at $2,362.