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Just another question if you don't mind , how safe is the Electrum wallet that comes with tails ? and there is something that I can't seem to understand really ... which is Live using USB if I use the wallet which is by default on tails then reboot my PC and run the USB once again , will I find the bitcoins gone (if I don't save the seed) ? which means Live USB dosen't save anything ? so whats the point
I can 't seem to understand this
https://tails.boum.org/doc/encryption_and_privacy/your_data_wont_be_saved_unless_explicitly_asked/index.en.htmlAdding onto what Abdussamad said, basically how Tails works (to my understanding) is that it all runs in memory and no information is saved to the USB, unless you explicitly tell Tails to save data (persistent volume).
So if you were to use Electrum with Tails with all default settings, what you'd initially have to do is generate a new Electrum wallet, and save the master
public key for later use (when you request payments and such). You wouldn't put your bitcoins at risk by storing your master public key on an infected computer, as all you can do with that file is generate public keys for the private keys that Electrum generates.
Then, if you wanted to spend bitcoin, you'd have to boot up Tails, recover your Electrum wallet by entering your seed and send the coins.
tl;dr: Tails and Electrum should be a safe combination. You'll need to remember your Electrum seed to send bitcoin if you're using a completely live version of Tails since the USB won't save any data.