FC poll: how big of a role do MPC wallets play in next wave of adoption?

shadowy super coder. Banner is Solvency #486                                                                   Currently: Metamask Portfolio

i've got a question about MPCs that quick googling couldn't answer: if both i and the service i use have a "secret share", can the service "recover" my wallet without my knowledge and transfer all funds away?

cto @ bwl.gg (lunchbreak.com), 80M+ users (bdut.ch) 🙏 built @remindme, @mintit, @gpt, @healthbot, farcantasy.xyz

In an MPC scheme you have to define how many shares are enough yo sign a transaction. In a 2 out of 2 scheme the service cannot do this.

Used to make BMWs drive themselves. Now, I make web3 easier at Fr0ntierX

but wouldn't 2 out of 2 scheme defeat the MPC purpose completely because if you lose your secret share the funds are locked?

isn't this just... multisig then? like classic multisig where you could give trusted friends multisig rights?

There are wallets that use 2 out of 2 and make sure the share is properly backed up on both sides. See ZenGo for example.

That being said, I agree that 2 out of 3 is better!