Trezor Chief Commercial Officer Danny Sanders pushed back on blockchain investigator ZachXBT's recent criticisms of crypto hardware wallets.

"All hardware wallets are complete garbage, and I do not advise using them for important tasks like signing transactions or storing funds," ZachXBT wrote in a post on Telegram earlier this week, recommending that users instead dedicate a separate iPhone that's only used to store funds and sign transactions.

In an interview Friday with The Block's Gareth Jenkinson on The Starting Block, Sanders acknowledged frustrations around the criticism, especially when software or firmware updates disrupt urgent or high-value transactions.

"I actually get it, and I agree that we have clunky solutions out there," Sanders said. "It’s really hard to build on the edge of security and usability."

However, Sanders argued that ZachXBT was generalizing from a use case that really only involves sophisticated users managing large sums.