I would say hackers are everywhere and they can not stop running the crypto currencies because they know very it's anonymous nature is leading factor for them. They kind of get extra layer of protection. Anyway with some research they can be caught.
About the precautions . .
1. You should store your tokens and/or coins in the wallet for which you hold the private keys.
2. Obviously store these private keys in safe place and I would suggest that you should save them in the offline password manager.
3. Never ever go to link of your wallet from different websites, chats etc. Always bookmark your wallet website link.
4. Using the hardware wallet is advisable but looking at the cost you may prefer focusing on the first three points.
5. Storing the tokens on exchanger is worst idea. Hence follow the rules 1, 2 & 3.
5. Do not use public internet and I am pretty sure if you access wallets like that then you will loose your money.
That's all I know and I follow.
Agree with you taiwww.
It should not be a burden in your mind, I mean so that this is not to interfere with the activities that you do every day.
Although the use of bitcoin it's a very risky especially related to viruses and hackers, this does not apply to me, because "Dare to have, means you've got to have the courage to accept for the large loss that occurred.."
I think that's a common consequence that always happens in the internet world.