Hardware wallets are physical devices that keep cryptocurrency private keys offline, ensuring that these keys never touch an internet-connected device. Ledger, founded in 2014 in France, has sold over eight million devices, while Trezor claims to have invented the hardware wallet in 2013. In July 2026, a Coldcard firmware bug allowed attackers to steal approximately 1,816 BTC, worth around $116 million, from more than 5,200 addresses. In October 2026, Ledger revealed that devices sold by Southeast Asian reseller CryptoBilis had been tampered with to steal seed phrases, draining roughly $86 million from users. In response to these vulnerabilities, manufacturers are diversifying their offerings: Ledger launched the Android-powered Atom for agentic finance, while Trezor integrated a post-quantum signature scheme in its Safe 7 to prepare for quantum computing threats.
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