Poloniex is one of the greatest prizes in hacking at present. Lord knows how much money is stored on there. I'm sure they're extremely careful but another hack is only a matter of time.
It's already happened and somehow it'll happen again. Considering the returns on offer there's no way I'd bother myself.
I don't understand what you are saying because already Poloniex has been hacked, but at last, they recovered the losses and paid to all the members. Already they are providing lot of security measure to their members but what my concern is whether lending money is working fine with Poloniex or not.