Blockstream Jade: Virtual Secure Element Model Defended

Blockstream Jade drew fresh attention after @Excellion highlighted its blind oracle architecture as superior to physical secure elements that become stationary targets for attackers.

The post, retweeted by @adam3us, notes that Ledger Donjon previously extracted keys from Coldcard Mk2 and Mk4 silicon while voltage-glitching Trezor Safe 3, underscoring why Jade encrypts the seed with an AES-256 key split between device and oracle that rate-limits and wipes after three failed PINs.

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