BitBox said credit-card sales in August were about 10 times the baseline of the preceding weeks, with most of the increase coming from North America. Trezor and OneKey also confirmed higher sales, while Ledger declined to comment and Block’s publicly listed status limits it to quarterly reporting. The Coldcard firmware exploit prompted manufacturers to review seed generation, entropy, random-number generators and firmware security, although analysts said some users may have moved funds to exchanges or ETFs. Trezor, BitBox, OneKey, Ledger, Blockstream Jade and Block detailed measures including additional testing, security reviews, firmware updates, disclosure changes and user education as AI-assisted attacks accelerate.