Google's cloud computing division is continuing to develop a service that will allow financial institutions to securely manage cryptocurrency transactions. The technology eliminates the need for any single party to hold the complete private key, reducing the risk of unauthorized access to digital assets.
Google Cloud has updated the documentation for its Multi-party Compute (MPC) service, designed for institutional Bitcoin custody. The service uses multi-party computation technology, allowing multiple parties to jointly authorize and sign transactions without revealing the full private key.
The service is still in preview. This means its functionality and technical support may be limited, and the product is not yet ready for full commercial use.
The documentation update came ahead of the MPC Symposium, which Google Cloud is hosting in New York on October 28. The company plans to showcase new developments in multi-party computation at the event.
Scheduled participants include representatives from Morgan Stanley, crypto exchange OKX, and banking giants Citi and Wells Fargo.
How Google is strengthening cryptocurrency transaction security
Development of the service has been underway since at least August 2026, when the first entries appeared in its release notes. On October 1, Google expanded its security controls for Bitcoin transactions.
Specifically, the system gained the ability to check transaction amounts, identify recipient address types, and detect change outputs — the remaining Bitcoin returned to the sender after a transaction.
Google Cloud has also previously explored secure multi-party computation through its Confidential Space project. This cloud environment is designed to enable multiple parties to securely process and share data.
The exact timeline for the full launch of Multi-party Compute remains unknown. Google Cloud has also not specified when the service will become widely available to institutional clients.
Why is Google entering the cryptocurrency market?
Major banks are increasingly using blockchain technology for payments, cryptocurrency custody, and asset tokenization. However, working with digital assets requires robust security systems, as the theft of a private key can result in the loss of funds. Google Cloud aims to establish a presence in this market by offering financial institutions ready-made solutions for securely managing cryptocurrencies.
For Google, this represents an opportunity to expand its cloud business and attract new corporate clients. Banks and investment firms will be able to use its technology instead of developing their own security systems. Google does not intend to hold users' cryptocurrencies directly, but rather to provide infrastructure for institutions working with digital assets.
As a reminder, Google Cloud is expanding its NVIDIA Vera Rubin infrastructure.
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