We already enter year 2019 but hacker still able to hack, it's really difficult for me to explain the great side about crypto
That's the reason why they were called hackers, they don't have any goal but to steal others money through penetrating the security of a platform like exchanges or casinos. And these hackers are eyeing for the ones that has large funds on their vaults.
In addition, the difference is that they continue to look for the vulnerabilities of a site, continuously. Whereas site security guards, if they feel safe, they don't make it strengthen anymore. Until finally their security was break. When it's like this, I'm worried about another big exchange site, it's definitely become the next target.