Well, it's good to remember about the security of your coins. There always be a hacking risk, that's one of the features of cryptocurrency market. You can playdown the risk by using some reliable cryptocurrency exchanges (I can recommend CoinDeal, that's my number one) and hardware wallet. Remember that any of your steps could be dangerous, always try to be cautious
Speaking of CoinDeal, i've read an article on blockchain24 that they've received membership in VQF some time ago - and i think it may help them raise their security level.
Hackers do love challenges.
A good example I can cite is this trader on twitter who was bashing another hacked trader. This basher went on to claim that he will never be hacked. A few months later, he's all over twitter condemning the hackers stealing his funds.
It's a funny story, but there are people who are breaching security systems not only to tease someone, but more oftenly - for their own profit, and that's what makes cryptomarket vulnerable - it's full of money.