Trying to figure out something,
Have a certain amount in a paper wallet and i want to withdraw half of it.
Using an HD wallet on my mobile and i scan the private code of the paper wallet.
at this stage the private code has been scanned and it's on my device so its not really private anymore.
Am i missing something ?
Or the thumb rule is to withdraw all the amount from the paper wallet to avoid this situation ?
thanks
Mark
You still have all out safe option to scan priv code with QR scanner installed on air-gaped PC which prevents it from leaking outside. Then that code should be imported into cold wallet living on the same machine. Cold wallet in turn could sign relevant transaction. The latter can be broadcasted via online services. As it was said in above comments the use of HD wallet on mobile device may compromize you private key.