You need to learn what mistakes you made and invest in a hardware wallet for sure if you decide to dabble in crypto again. Trezor works well with myetherwallet.
Of course I will use hardware wallet now as suggested.
After watching the history of this thread, I've concluded a few things for you:
1. Etherscan is just an explorer, so it has nothing to do with the hack. You (and anyone) can only use it to watch your address for your complete stats as to how many ETH and other tokens are available in it (just as Read-Only mode in PC).
2. Myetherwallet is a wallet providing service, but they clearly ask you that you should bookmark
https://www.myetherwallet.com/, as well, go through the slides and understand how you can stop yourself from being scammed (or your coins stolen).
3. Ask your friend why he thinks that keeping a telegram chat open may get your mobile/PC hacked? I've never encountered such a scenario. The only thing that matters is, if you've put your private key in a chat (sometimes some bots ask it for some giveaway purposes, but stay away from them as they will just swipe your money off a second later you give it to them).
4. Even if you don't have a hardware wallet
(best if you could buy one) and if you can't afford to get one, here's a tip for you:
- Save your private key at a safe place and never, ever share it with anybody. Your private key is the only thing that you need to keep safe from anyone in this space, and if you can't do this, I guess you may never be able to safeguard your coins.
- If you're worried about your private key, I'd suggest you go for a Keystore file. You can find more info below:
Keystore File (UTC / JSON)
This is encrypted by the password you chose.
This is the recommended version to save.
This Keystore file matches the format used by Mist so you can easily import it in the future.
Make sure to have multiple backups.
Source:
https://myetherwallet.github.io/knowledge-base/private-keys-passwords/difference-beween-private-key-and-keystore-file.html