Agreed. Bitkey design clearly optimized for usability and I think they swung a bit too hard in that direction. Too many security concerns to be used for large savings. The mobile phone in particular is highly vulnerable. An attacker would know they can get to an owner’s bitcoins through the phone and the phone alone (just by waiting out the Delay and Notify protocol). If popularized, it will incentivize kidnappings. I wrote a full review of Bitkey here:

Nunchuk

Bitkey by Block: A Comprehensive Review

Block recently introduced a self-custodial solution for Bitcoin called Bitkey (https://bitkey.world). This review delves into Bitkey’s features, ...