Let's say you have a bunch of toys to sell, but you're worried that a lot of them might break and you'll lose money. But you don't want to give up on selling your toys, so you ask your friend to help you out. Your friend says they'll give you some money if a certain number of toys break. This makes you less worried because if the toys do break, your friend will help you pay for them.
This is kind of like an industry loss warranty.
An industry loss warranty is when a company agrees to pay out some money to another company if there is a certain level of losses in a particular industry. The company buying the industry loss warranty does this to help protect themselves from unexpected losses that may happen in the industry they work in.
For example, let's say you're an insurance company and you insure houses in an area that is prone to hurricanes. You might be worried that if there is a big hurricane, you'll have to pay out a lot of money to fix all the damaged houses. So you might buy an industry loss warranty from another company. This would mean that if there is a big hurricane and lots of houses get damaged, the other company will help pay for the damage so you don't lose too much money.
It's kind of like having a friend who helps you out if a lot of your toys break, but on a much bigger scale!