tedski the swap to ETH blockchain is coming up soon for Ecomi , so if u leave them on the exchange it will be done automatically, And i am pretty confident on the security because To even get into your Ascend account you need to enter the PIN sent to your Phone, Email, and Google Authenticator ... all within 60 seconds... i cant see a hacker getting in honestly.
i actually did notice u can buy direct from Ascend , that was a mistake on my behalf , And i also made a mistake with litecoin, For the people who dont want to deposit using debit card and want to send crypto over to swap, its better to just buy XLM and send it over to the Ascend , then sell the XLM on Ascend and buy the OMI.
i will be sending my OMI tokens to my trezor when the swap is done, i just think its the best place considering this is a long term bet for me.