> For the complete documentation index, see [llms.txt](https://docs.casa.io/wealth-security-protocol/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.casa.io/wealth-security-protocol/casa-vs.-alternatives/introduction.md).

# Introduction

Casa specializes in high-security, sovereign storage systems for private keys. We help users store cryptocurrency (specifically within the Bitcoin and Ethereum ecosystems) of all sizes while maintaining control of the keys themselves. 

There are a few different options one might consider when storing cryptocurrency. The following pages lay out some of these options, with a goal of helping people make an informed decision about the tradeoffs involved in choosing a cryptocurrency storage method.<br>


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