--- title: "Coinbase Global (COIN) Upgrades Bitcoin Custody To Post Quantum Security" type: "News" locale: "en" url: "https://longbridge.com/en/news/305529239.md" description: "Coinbase Global has upgraded its Bitcoin custody systems to be post-quantum secure, addressing vulnerabilities affecting over one-third of the global Bitcoin supply. This enhancement covers assets for both retail and institutional clients, aiming to bolster security and institutional trust within its 'Everything Exchange' model. While the move reinforces long-term safety against emerging quantum risks, the direct impact on revenue and subscription income remains unclear." datetime: "2026-11-14T05:19:22.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/305529239.md) - [en](https://longbridge.com/en/news/305529239.md) - [zh-HK](https://longbridge.com/zh-HK/news/305529239.md) generator: "portal-rs" --- # Coinbase Global (COIN) Upgrades Bitcoin Custody To Post Quantum Security - Coinbase Global (NasdaqGS:COIN) has upgraded its Bitcoin custody systems to be post quantum secure, according to a recent announcement. - The change follows new data indicating that over one third of global Bitcoin supply may face quantum related vulnerabilities. - The upgrade covers Bitcoin held on Coinbase, including assets stored for both retail users and institutional custody clients. - Coinbase's move to post quantum Bitcoin custody tackles only one side of the broader quantum risk story for investors. Take a look at 1 warning sign we have identified for Coinbase Global. For readers watching how quantum computing risk intersects with listed assets, the next logical step is to review 25 quantum computing stocks. Coinbase Global runs a large crypto trading and custody platform across the US and international markets, so any shift in its security approach can influence how both retail traders and institutional clients think about safeguarding digital assets against emerging quantum risks. See how Coinbase Global's balance sheet measures up. ### Post quantum custody leans into Coinbase Global’s security pitch, but leaves revenue impact unclear For Coinbase Global, hardening Bitcoin custody against quantum attacks speaks directly to the Narrative catalyst that leans on security and institutional trust to support a broader “Everything Exchange” model. Moving early on post quantum protection can reinforce the case that its custody arm, which already holds a meaningful slice of on chain assets, is built for long term threats rather than just today’s exploits. What this upgrade does not answer is how much of that security spend converts into subscription and services income, or whether institutions treat quantum readiness as table stakes rather than a reason to shift more assets to Coinbase. See how these catalysts shape Coinbase Global's path to a $197 fair value. The cleanest early read will come from disclosed metrics on institutional custody balances and new large client mandates that reference quantum secure infrastructure, especially if management ties those wins to subscription or service fee trends rather than just one off technical milestones. 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