Having no seed phrase vulnerability (single point of failure) significantly reduces the surface area for attack vectors. Added layers of security (like the built-in web3 firewall) help protect against Web3 attack vectors.
3D FaceLock is one of the parts of the wallet recovery process: It's a biometric liveness verification (backed by 600,000 USD bug bounty). But 1) It's only one of the factors, and 2) It's never been hacked/spoofed.
Zengo's MPC wallet uses a 2/2 signing mechanism (similar conceptually to a multi-sig). You initiate transactions from your Zengo app (inside the app is the Personal Secret Share, which interacts with your wallet's secure enclave/TEE during the signing process). The Remote Share on Zengo's server essentially co-signs the transactions.
By removing a single point of failure (private key or seed phrase) it is much more challenging for a hacker to steal/spend funds or take over a Zengo wallet - indeed... we have over 1,000,000 users (since 2018) and 0 wallets hacked, 0 wallets drained. More info here: www.zengo.com/security
Also happy to answer more qs. Cheers.
