Blog
Notes on self-custody, multisig, and building safer ways to hold your own keys.
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Self-custody
A hardware wallet alone is not secure enough for self-custody
You're one compromised firmware update away from signing away your funds.
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Introduction
What is Cosigni?
A second factor for self-custody that lives outside your wallet, understands what your transactions are actually doing, and makes unsafe signatures harder to approve by default.