Ambire Ice Puts Safe Owner Changes and Approval Thresholds on the Signing Screen

TL;DR: Ambire says its Ice hardware wallet will decode Safe transactions and flag changes to account control. The design targets the decisions signers make before authorizing an action. Ambire’s new Ice hardware wallet brings attention to a security question that a strong private key cannot answer on its own: does the person signing understand how the transaction will change control of the account? The company’s October 30 introduction describes a device built around Safe accounts, with transaction decoding and warnings about sensitive configuration changes. Its significance extends beyond displaying the recipient of a routine payment. The proposed screen covers changes to authority In its product announcement, Ambire says Ice can display individual Safe actions, including transfers, token approvals and transaction batches. It also describes warnings for changes to owners, signature thresholds and modules. The manufacturer says the hardware and firmware are open source, and lists USB, Bluetooth and QR signing modes. These are product claims, not an independent finding that every possible transaction is interpreted correctly or that the complete device has passed a particular securi...