Users have expressed concerns about the security of the Ledger cold storage tool and are now migrating to the Polkadot vault, which offers several commendable features. The recent firmware update by Ledger has raised questions about the presence of a backdoor, which the co-founder could not disprove.

As a result, users have decided to abandon the platform and migrate to Polkadot. The Polkadot vault offers unique features such as using phones in airplane mode as an air-gapped wallet and signing transactions with QR codes. It also allows users to add other Substrate-based chains and metadata updates for those.