Key Security.
Designed by Casa.

Learn how Casa designed our key management and wealth security protocol.

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wealth security protocol by Casa
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What's inside?

Casa vs. Alternatives
Compare Casa’s Key Shield Bitcoin security solution with other options available today, so you can be fully informed about your choices when securing bitcoin.
System Design Principles
What are the core principles that we followed as we approached the problem of bitcoin storage? Learn how we designed our system to be the best in security, privacy, and personal sovereignty.
Threat Overview
See the potential threats that you must overcome when securing your bitcoin. Casa App was specifically designed to mitigate or completely prevent each of these threats.
Chosen Features
Learn about the main features of Casa App that help you overcome threats and attack vectors when storing bitcoin yourself. Features include multi-signature, hardware-agnostic security, and sovereign recovery for disaster scenarios where Casa stops existing.
Chosen Key Schemes
Read about the various key setups that Casa currently offers, as well as ones we evaluated and eventually rejected. See why our chosen schemes of 3-of-5 and 2-of-3 are the right fit for their respective use cases.
Rejected Features
What features do other options offer that Casa rejected? Each of these features may be considered “standard” or “nice-to-have,” but actually introduce security flaws that are unacceptable for our users.
Remaining Attack Vectors
What are the remaining attack vectors even when using Casa, and how can you mitigate them by implementing your own security best practices?
Future Improvements
See what we’re working on to improve Casa’s key management system in the years ahead. These features rely on improvements to Bitcoin Core, and will increase privacy, reduce fees, and allow for more security rules around spending bitcoin.

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