Was happend to me with Cryptsy , lesson learned after that from that misstake , because most dont wanted to have a lot of wallets and things on there PC.
I lost money on Cryptsy in 2014, which I never got back
I lost money on Bitfinex in 2016, which they did pay back after a few months
At least I didn't use Nicehack
I got trapped on Nicehash hack years back but they reimbursed everyone, sigh its getting very hard to feel safe in this crypto space no matter what your backup plan might be, imagine I heard that one should stay away from hardware wallets that are be sold from stores around you.