You don't. Hacks target the exchanges wallet by finding exploits and not the user accounts separately. If you want your funds to be safe, use exchanges for trading only and withdraw to your personal wallet.
hacker is a big problem around the world...how to solve this kind of hendrance to us,hackers know all the system how they steal....one thing for sure is we must keep our secret profile so that hacker that steal our info that we have...everything has vulnerable,no matter how we secured always happen when they are fine our profile...