Renowned privacy-focused email service provider, Proton Mail, has recently announced the successful development and release of an open-source Bitcoin wallet. This move is aimed at further strengthening user privacy and data control. The Bitcoin wallet is built on open-source code, ensuring transparency and security in its functionalities, allowing users more freedom to manage their cryptographic assets. Proton Mail has long been committed to providing highly encrypted and privacy-protected services. By launching this open-source Bitcoin wallet, it takes another significant step towards enhancing digital privacy. Integrating this feature enables users to store and trade cryptocurrencies alongside sending private emails, thereby enjoying comprehensive privacy protection across the digital world.