Actually it's pretty easy. You just need to use your common sense actually. First of all you just need to not do any financial transactover public wifi and changing your password frequently. I'm sure hackers are getting smarter but in turn security measures gey more elaborate. It's just a matter of eliminating the human error in it.
Yeah I admit that changing and strengthen your password regularly and avoiding public wifi while making any importance transactions is the key point to protect us from hackers. Nothing is 100% safe and secured and cryptocurrencies are not an exception and hackers just keep getting smarter and smarter so it is detrimental to prepare yourself some ways to minimise the possibility of getting hacked.