Trezor Model T Gets Bitcoin Privacy Upgrade With New CoinJoin Feature

CoinJoin will increase privacy by combining multiple bitcoin payments from multiple spenders to produce a single transaction whose history and ownership are obfuscated.

AccessTimeIconApr 19, 2023 at 10:25 p.m. UTC
Updated Apr 20, 2023 at 3:22 p.m. UTC
10 Years of Decentralizing the Future
May 29-31, 2024 - Austin, TexasThe biggest and most established global event for everything crypto, blockchain and Web3.Register Now

Crypto hardware wallet company Trezor has collaborated with Bitcoin privacy firm zkSNACKs to introduce “CoinJoin” to its Model T device. CoinJoin is a way of combining multiple bitcoin transactions to enhance privacy.

Trezor says the Model T is the first and only hardware wallet to enable CoinJoin transactions for bitcoin. Several software or “hot” wallets like zkSNACKs’ Wasabi wallet already have CoinJoin. The feature will be rolled out to Trezor’s Model One devices at a future date, according to the company.

Most transactions on the Bitcoin blockchain are publicly available. A basic tool such as a block explorer – a piece of software for analyzing cryptocurrency transactions – is all it takes to tie those transactions to real life identities and violate users’ financial privacy.

CoinJoin attempts to reinstate privacy by combining multiple bitcoin payments from multiple spenders to produce a single transaction whose history and ownership are obfuscated.

CoinJoin can be done through decentralized coinjoin marketplaces such as JoinMarket, or through wallets like Trezor’s Model T or zkSNACKs’ Wasabi wallet. Both Model T and Wasabi use zkSNACKs’ CoinJoin service that charges a coordination fee – 0.3% of the coinjoined amount according to Trezor.

Per Trezor’s release: “Users simply click on the ‘anonymize’ button. Users then choose the number of CoinJoin rounds — with every round increasing the level of privacy — confirm their choices on the Trezor device, and the rest of the coinjoin process is automated and requires no active user participation.”

Trezor’s other privacy features include Tor, coin control, and Shamir backup.

“Trezor values privacy as an individual’s most important asset,” said Matěj Žák, CEO of Trezor. “Consequently, we’re delighted that we’ve found a way for our community to keep their bitcoin history private.”


Please note that our privacy policy, terms of use, cookies, and do not sell my personal information has been updated.

CoinDesk is an award-winning media outlet that covers the cryptocurrency industry. Its journalists abide by a strict set of editorial policies. In November 2023, CoinDesk was acquired by the Bullish group, owner of Bullish, a regulated, digital assets exchange. The Bullish group is majority-owned by; both companies have interests in a variety of blockchain and digital asset businesses and significant holdings of digital assets, including bitcoin. CoinDesk operates as an independent subsidiary with an editorial committee to protect journalistic independence. CoinDesk employees, including journalists, may receive options in the Bullish group as part of their compensation.

Frederick  Munawa

Frederick Munawa was a Technology Reporter for Coindesk. He covered blockchain protocols with a specific focus on bitcoin and bitcoin-adjacent networks.

Learn more about Consensus 2024, CoinDesk's longest-running and most influential event that brings together all sides of crypto, blockchain and Web3. Head to to register and buy your pass now.