Credit Default Insurance

What Does Credit Default Insurance Mean?
The use of a financial agreement - usually a credit derivative such as a credit default swap, total return swap, or credit linked note - to mitigate the risk of loss from default by a borrower or bond issuer.

Investopedia explains Credit Default Insurance
Credit default insurance allows for the transfer of credit risk without the transfer of an underlying asset. The most widely used type of credit default insurance is a credit default swap. Credit default swaps transfer credit risk only; they do not transfer interest rate risk. Total return swaps transfer both credit and interest rate risk.