Smile,then let me say you have not been here for long then, their have been case's of account hacked or even token wipe away from people's account here on hive,but to me I see this an act of negligence on one side to those who are involved too.
All password are to be kept private and someone need to be very careful of website to type out password too at times,most website are times are controlled by fraudster and once they have access to your key,it gives them the chance to explore other things
Blockchain can't be hacked definitely those people that their account is hacked they have make their account accessible because blockchain technology is not hackable