[tyrust]

You can transfer from Coinbase to your own wallet.

[hanniabu]

Yes, but while you have it on Coinbase you just own a marker.

[cachvico]

Until you can't.

[tyrust]

Uh that'd be stealing and would make them immediately lose credibility. But if you're really concerned about it, move funds to your wallet as soon as you buy.

[cachvico]

Because that's never happened (see: QuadrigaCX, Cryptopia, ...)