Here are some ways from which u can prevent your blockchain account from Hackers.
1) First Of all You must verify your email id there.
2) Also add your phone number in yoir account settings for extra security.
3) Add an Extra Password For transactions out there. It can help u and prevent the hackers from Spending ur funds if unfortunately they have access to your account.
4) Always keep your notifications on by email or sms so that u can track record of any changes made to your Blockchain account !
5) Always Try to use 2 Factor Authorization .
So in this ways you can easily prevent your blockchain account from hackers and keep your wallet more safe !
It would be a very helpful Post For Newbies ))