Yes, honestly im also afraid of hackers because in just an instant time you might lose everything. We need to be very careful when it comes to your accounts and also when browsing and opening some malicious emails. Make sure that your private key is in safe and secure place, never give it to anyone.
Same with you, im afraid also in hackers because their are some hackers that are so greedy when it comes in money. They dont even care whether you work hard to gain it. Also some hackers are proud of being hacker, they use their knowledge in hacking to sustain and provide what they want.
Being afraid in hackers is not a weakness. Its just a mere fact that every transaction you do, you always have to be careful and wiser than the hackers.
If someone hack your account all your money will be gone in just a minute, just like a friend of mine. When he open his account there's nothing more left in his account. So we always need to be more careful now that bitcoin is becoming more and more popular.