Thanks for the explanations , everybody. Now i have understand. Anyway , Are there any alternative rather than Electrum wallet. Anything can happen in crypto. If electrum wallet hacked , then what else we can do?
What is your operating system (Windows, ISO, Android)? Are you planning to invest in more cryptocurrencies? Although I do not encourage you to invest in altcoins, but if you want to, you can try --->
https://unstoppable.money/For more Bitcoin wallet you can try --->
https://bitcoin.org/en/choose-your-wallet
Hacking and data theft depend on how secure your operating system is, so if you are downloading apps randomly, it is best to use a clean device or format your device.