The confusing thing is the number of accounts hacked compared to the amount stolen, I mean 483 users have accounts managing about $34 million which is a huge amount for an average user.
It makes a bit of sense if we assume the following.
"Hackers" found an exploit in the system, it was not a phishing attack that would trigger immediate reactions and email and app alerts from the company but a stealthy way to access random accounts on the platform.
Now if you would have managed to get access to accounts without alerting anyone, you wouldn't go randomly through them picking every single balance you would take your time, select the largest ones that you could find in a time window, and then empty that one by one, knowing perfectly that at one point the mass withdrawals will trigger some security checks. So why not try and make it big rather than rush and collect pennies?
Oh, and speaking about confusing, when I checked the number the weird part was this :
The Singapore-based exchange, in an update on Thursday, acknowledged that unauthorized withdrawals totaled 4836.26 ether ($15.2 million), 443.93 bitcoin ($18.7 million) and $66,200 in U.S. dollars.
But when going to crypto.com I saw that it was "in other cryptocurrencies.", again lazy journalism, they've made their word quota , who cares about the rest.