Are there any alternative rather than Electrum wallet. Anything can happen in crypto. If electrum wallet hacked , then what else we can do?
There are alternatives, but Electrum is probably the easiest. And you're using cold storage to stay safe, so you should sign your transaction offline:
I was considering Electrum, only downside is that when creating a wallet, seed creation is exposed
Online:Install Electrum on your PC.
Import your address to create a watch-only wallet.
Preview the transaction, Copy the unsigned transaction. Put it on a USB stick.
Offline and running without hard drive storage:Get a Linux LIVE DVD. Use Knoppix or
Tails for instance, or any other distribution that comes with Electrum pre-installed.
Unplug your internet cable. Close the curtains. Reboot your computer and start up from that DVD. Don't enter any wireless connection password. Keep it offline.
Start Electrum. Import your private key.
Copy your unsigned transaction from the USB stick, load it into Electrum.
CHECK the transaction in Electrum. Check the fees, check the amount, check all destination addresses (
character by character).
If all is okay, sign the transaction. Copy it back to your USB stick.
Turn off the computer. That wipes the Live LINUX from memory and all traces are gone.
Online:Use your normal online Electrum to (check again and) broadcast the transaction.
Bonus:After moving all your Bitcoin, and once the transaction confirmed, check if you own
Forkcoins.
Also: when sweeping paper wallets, you should move the entire balance at once. Or manually set a change address (which could be a new paper wallet).
Warning: some of the paper wallet websites from back in the days now produce compromised paper wallets. Don't trust them anymore!