OK so final rundown. Cold Card is the shit. No signing device and I’ve been air gapped since day 1, so despite the unauthorized TX showing “signed”, it would not progress to completion. Did a Replace With Fee to override the unauthorized TX and send sats to a temp address. Renewed my HW wallet seed to re-establish it is good. Looks like I am in the clear. Unless there is something fundamentally wrong with Cold Card’s security model, or with Sparrow desktop.

Cost: my seed plates and $50 in TX fees.

Fuck you hacker.

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Discussion

Hi MJ, I am Johan Liebert a kid's rights student. About your issue, did you have a passphrase that was never in any decive conected with the network ?

Never

I was expecting some "nice to meet you Johan" but we can skip it I guess. So Mj lets see... was you passphrase very simple or was it complex ? If it was very simple someone could hack; if it was medium simple someone that knows you very well could guess; and finally, if it was complex you are lying about something previous.