If the value of your crypto falls, your borrowing limit falls with it. Kraken monitors this in the background and shows you the latest figure in the Loan Centre.
If things start to get risky, we'll warn you so you can repay or add more funds. If you don't act on the warning, we'll sell some of your crypto to cover the loan - but we'll never do this without warning you first.
Warnings are sent by in-app message. You're responsible for making sure you can receive these - keep notifications switched on.
If we do need to settle the loan, we do it in this order: EURC first, then any cash (USD, EUR, etc.), and only then your other crypto.