ZachXBT recently argued that a dedicated iPhone offers better security than a hardware wallet, a line of reasoning that already splits crypto’s security community.

Both devices are fundamentally signing devices, and the real vulnerability crypto has spent a decade building around lives in what a valid signature gets to do once it exists.

Hardware wallets address the moment when malware might extract a private key directly from an internet-connected computer, providing real and effective isolation.

Crypto’s largest recent losses occurred at a different point in the same chain: the moment a user approves the transaction.

When the key stays safe and the money moves

Attackers stole roughly $1.5 billion from Bybit by manipulating what the signers…