I saw a demonstration of this system. It is the size of a credit card and it uses an app on a mobile phone to carry out the approval and transactions.

Although it looks very useable I am concerned that during the installation process the key phrase is displayed on the mobile phone, and it is only 12 words long.

I thought the whole idea was that the key phrase should never appear on a mobile phone or computer so this fact alone gives me serious doubts as to the security of this system.

Has anyone else used this who can comment?

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