Do and Don't for Electrum Wallet

[o_e_l_e_o]

I agree with others, something that has been hacked before would never give me trust ever again, it would not be possible at all for me to trust it and use it.

Do you use a centralized exchange? They have all been hacked at some point.

This is why I believe that we should be focusing a lot more towards finding something that has never been hacked or never had any bugs etc etc before

This is an unobtainable standard. Every piece of software in existence has bugs in it. Bitcoin itself has had a number of critical bugs, probably the worst of which resulted in 92 billion bitcoin being created out of thin air.

For the online wallet, use another tails os to put your xpub. You will pass the psbts with qr codes or burned cds. not usbs.

What's the benefit of your online wallet being on another instance of Tails, as opposed to just your usual OS? Provided your computer is clean, free from malware, and your watch only wallet is connecting exclusively to your own node, I don't see what is to be gained by using Tails for this part? I suppose the benefit comes if you are not connecting to your own node at all and are just using third party Electrum servers?

[o_e_l_e_o]

If you actually do this, you wouldn't use most service and software from big tech company such as Google, Microsoft and Facebook.

That wouldn't be such a bad thing.

And such benefit would be negated if you configure Electrum to use Tor and you install Tor service on your online device.

Well, not entirely, since whichever servers you connect to via Tails will still be able to link all the addresses in that wallet together. You can break the link between different wallets (provided you change circuits) and the link between your wallets and your IP address, but not between different addresses in the same wallet.

[khaled0111]

The thread "I've been hacked Electrum..." must be removed or the title changed as it gives the impression that Electrum is vulnerable. How Julerz've been hacked has nothing to do with Electrum itself.
If you are looking for what to do and what not to do to keep your wallet safe then you will find an infinity of threads which will help you in your quest.
Just download it from the official website and verify its signature then follow the above suggestions and you should be fine.