Choosing the right Bitcoin wallet has always been a balancing act between security and usability. A new open-source project called Bitcoin-Safe aims to tip that balance firmly toward security without sacrificing the user experience, launching a multisig savings wallet that mandates hardware wallets for all mainnet operations and has earned backing from the OpenSats Foundation.
Developed over more than two and a half years by Andreas Griffin, Bitcoin-Safe arrives at a time when Bitcoin trades above $108,800 and the need for secure long-term storage solutions has never been greater. The wallet differentiates itself from established options like Electrum and Sparrow by enforcing hardware wallet usage on mainnet, explicitly prohibiting software-based seed phrases that can expose funds to malware and phishing attacks.
The Threat Landscape
Cryptocurrency theft losses have surged past $635 million across more than 28 incidents in the first half of 2025 alone, with North Korean cybercriminal groups reportedly stealing over $2 billion in digital assets this year. Software wallets remain the primary attack vector, with malware like the BlockBlasters Steam backdoor specifically targeting wallet dat files stored on local machines.
The threat extends beyond direct wallet compromise. Phishing attacks, clipboard hijackers that swap cryptocurrency addresses, and fake wallet applications continue to trap unsuspecting users. For anyone holding significant Bitcoin savings, the margin for error is effectively zero — a single compromised private key means irreversible loss of funds.
Core Principles
Bitcoin-Safe is built on three foundational security principles that set it apart from the competition. First, mandatory hardware wallet enforcement ensures that private keys never exist on a computer’s file system where malware can reach them. The wallet supports all major hardware devices through QR code scanning, USB connections, and SD card transfers. Griffin is unequivocal on this point: for savings, there is simply no substitute for a hardware wallet.
Second, the multisig setup wizard walks users through creating a multi-signature configuration and generates a PDF with complete wallet descriptors, including mandatory send and receive tests to verify the configuration is correct before any funds are committed. This eliminates one of the most common failure modes in multisig setups — losing access because the configuration was recorded incorrectly.
Third, coin control features separate different categories of funds, preventing accidental linkages between KYC-verified exchange withdrawals and privacy-sensitive coin sources. Users must explicitly select the source of funds for each transaction, a feature that protects privacy by default.
Tooling & Setup
Built on the Bitcoin Dev Kit, Bitcoin-Safe leverages a modern, well-maintained codebase that is fully auditable on GitHub. The wallet is compatible with Windows, macOS, and Linux, and the installation clients are available for free at bitcoin-safe.org/download. Version 1.5.0, released with a redesigned user interface, introduces a sidebar for managing multiple wallets, updated transaction views, and a mempool visualization showing block and fee data in real time.
One of the most innovative technical features is the use of the Nostr protocol for cross-device synchronization. Transaction and address labels sync end-to-end encrypted across multiple computers, and multisig participants can share Partially Signed Bitcoin Transactions with a single click. Nostr relays store encrypted messages for asynchronous access, meaning co-signers do not need to be online simultaneously.
The wallet also supports real-time conversion for 123 fiat currencies, converts Bitcoin values to gold or silver equivalents, and provides mempool alerts for transaction propagation — all configurable through the interface.
Ongoing Vigilance
Bitcoin-Safe development is supported by a one-year OpenSats grant running from March 2025 to March 2026, ensuring continued maintenance and feature development. The project welcomes community contributions through translations via Weblate, currently supporting English, Chinese, and Spanish with more languages in progress.
Users can test the wallet with testnet Bitcoin before committing real funds, report bugs through the GitHub repository, and donate via Lightning or on-chain transactions to support ongoing development. The project maintains active community channels through Chorus.community and social media accounts.
Final Takeaway
Bitcoin-Safe represents a meaningful step forward in making multisig security accessible to everyday Bitcoin holders. By enforcing hardware wallets, providing a guided setup wizard, and integrating modern sync capabilities through Nostr, it removes the most common pitfalls that lead to fund losses. For anyone holding Bitcoin savings above what they can afford to lose, a hardware-enforced multisig wallet is not optional — it is essential. Bitcoin-Safe makes that standard achievable without requiring deep technical expertise.
Disclaimer: This article is for informational purposes only and does not constitute financial or security advice. Always conduct your own research before choosing a wallet solution.
mandatory hardware wallet on mainnet is the correct take. software seed phrases on a general purpose OS is just asking to get rekt
$635M stolen in first half of 2025 and NK groups took $2B. yeah im good with enforced hardware wallet only mode
OpenSats backing gives this credibility. 2.5 years of development before launch is actually responsible for a wallet