It is always a risk - no matter for which altcoin - to store them on an exchange wallet. If the exchange got hacked or if it disappears you lost everything.
I suggest to tranfers them immediately after purchase to your address where you control the seed or private key.
Is it for some reason not safe to store all the iota in bitfinex?
Can i buy more and store it there?
What to take care of in holding iota?
I understood that its some different things to take care of I didnt understand, since i am not native English, that it is a bit complicated...
Thank you
Join Slack channel here
https://slack.iota.org/How can I get an invite to Slack?
