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Do your own research!
Try out searching for "lost bitcoins", "stole my money" or "scammers" together with the wallet's name, even if you think the wallet is generally trustworthy. For all the bigger wallets you will find accusations. Make sure you understand why they were made and if you are comfortable with the provider's reaction.
The Analysis ¶
Without a screen and whitout a button, this device cannot provide basic security of hardware wallets.
The design of the device does not allow to verify what is being signed!
As part of our Methodology, we ask:Can the user verify and approve transactions on the device? If not, we tag it
These are devices that might generate secure private key material, outside the reach of the provider but that do not have the means to let the user verify transactions on the device itself. This verdict includes screen-less smart cards or USB-dongles.
The wallet lacks either an output device such as a screen, an input device such as touch or physical buttons or both. In consequence, crucial elements of approving transactions is being delegated to other hardware such as a general purpose PC or phone which defeats the purpose of a hardware wallet.
The software of the device might be perfect but this device cannot be recommended due to this fundamental flaw.
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