Blockstream Jade(@BlockstreamJade):Jade has had Anti-Exfil since the beginning. A compromised hardware wallet can slowly leak your private keys through the nonces in its signatures, even if the keys themselves were generated securely. Anti-Exfil stops this by using sign-to-contract: Jade cryptographically commits its nonce to random data from your host computer, fully re-randomizing it so no key material can be smuggled out. Blog written by Andrew Poelstra: https://t.co/a6yf0gEGgb More details:

Blockstream Jade

@BlockstreamJade

Jade by @Blockstream is an easy-to-use, purely open-source hardware wallet that offers advanced security for your Bitcoin and @Liquid_BTC assets.

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Blockstream Jade@BlockstreamJade

2026.08.06 15:01

Jade has had Anti-Exfil since the beginning. A compromised hardware wallet can slowly leak your private keys through the nonces in its signatures, even if the keys themselves were generated securely. Anti-Exfil stops this by using sign-to-contract: Jade cryptographically commits its nonce to random data from your host computer, fully re-randomizing it so no key material can be smuggled out. Blog written by Andrew Poelstra: More details: