this is clear proof, if the hacker is fabulous than security,
why is a hacker more powerful and fabulous than security? because they never give up, they have proven that there is no security that is 100% safe on the internet
First of all it's not about the security issue. You should research first "Why crypotcurrency was stolen and how they did it". Than it'll be clear that many users are not aware of ponzi scheme or their account security. Only in this point, hackers take advantage to stole crypto. So everything is well secure in the blockchain or cryptocurrency ecosystem. But users aren't aware about the account security or further researching.