So, what you do is basically the same as when you insure your car, but with a one-time fee. You choose from the ICOs they cover with refund option, make your investment in it (if you haven’t done this already) and pay your insurance fee which is a contribution to the collective pool of funds used to refund investments in failed projects. This contribution is 18% of the total investment you want to protect if you can find an affiliate (referral) link to register with and 20% without it, which in my opinion is more then acceptable having in mind that ICO investments are a very risky asset that you are ensuring, as I said earlier.