They need to do a lot more when it comes to security. As many other big and small players.
They gathered millions last year and they should do much more.
I'm using Bancor it's easy to use, but I'm feeling betrayed now.
I have also used Bancor several times and I found it to be similar to other exchange dencentralize like Eltherdelta or Idex, which is also quite convenient and easy to use. When using these exchange, I often use Metamask to increase security, avoid the case of hacking wallets