A Letter From Our CEO
Collaborative custody is private
In March 2019, we launched our bitcoin multisig vault platform, a superior approach to security that combines the control of self-custody with the benefits of a managed financial service. This approach allows users to control private keys and to create redundancy by distributing keys among participants who know and trust each other.
When a client chooses Unchained, they are making a decision to reveal themselves selectively to our company, and not to anyone else, in exchange for better security, redundancy, support, and more value from their holdings through our financial services. In doing so, we recognize that clients sacrifice anonymity and entrust us with their privacy in return for the value of our service.
Ensuring the privacy of our clients is critical to our business as is transparency around the information we collect and the associated risks. We want our customers to not only be informed about the value and services we deliver but also potential tradeoffs. Prior to using our services, we recommend all potential clients review our materials on privacy and security and please reach out to us with any questions.
Code review and technical security
Transparency around our systems is central to building trust as a financial services provider. We have invested in external reviews of our codebase and we open-source the primary applications of our software.
I completed a review of the client and server codebases used by Unchained Capital for delivering their lending and custody offerings. I did not find any security vulnerabilities, and I see reasonable steps being taken for the non-security issues I discovered. I think a lot of their Python source code is very well put together and crafted with attention to detail. This is good code. I definitely recommend Unchained's multisig custody solution for individuals and businesses seeking a high level of security for their Bitcoin.Bryan BishopBitcoin Core Developer (May 2019)