Sanctum Adds 2-of-3 Multisignature Security Across Its Wallets

Sanctum says its wallets have adopted a 2-of-3 multisignature setup, a change intended to preserve access after key loss and prevent one exposed key from compromising a wallet.

In this arrangement, two of three keys are needed to authorize a transaction. Sanctum says losing one key will not lock users out, while a single leaked key will not be enough to compromise access.

Multisignature wallets can shift risks among keys, devices and transaction approvals. A previous look at multisignature security and key risks described those trade-offs.