Watch out for phishing sites. Many people got scammed like that. Don't be lazy and check everything.
Everyday we can see examples of scammers creativity.
Although you can just simply bookmark the website to make sure you will not mess everything, because sometimes we messed while we're typing, like for example we type myetherwallet.com , instead you put myetherwallets.com (notice the S) that can be used by phishing.
Be extra careful when visiting cryptocurrency related websites as well, there might be a trick hidden behind it to get your wallet's vital information. Im not that savvy with software and programs, but I can be more careful not to become a victim by these hackers.