I have been trading on this exchange for some time. And I see that they are constantly improving security. The cool thing is that you can set an auto-logout time for your account, because I have a profile in both the desktop and mobile versions, and I feel more comfortable when I know that auto-logout on my laptop will happen 30 minutes after no activity.
Communication with the support team has become much faster. And now they have added phone support. However, I haven't used this opportunity yet, probably because I haven't had such an important occasion.