Examples guaranteed bond in German examples

How do I translate guaranteed bond into German?

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We can also add to these financial risks the massive problems of bond insurers that guaranteed many of the risky securitization products such as CDOs.

Zu diesen Finanzrisiken gesellen sich noch die massiven Probleme der Kreditversicherer, die viele der risikoreichen verbrieften Produkte wie CDOs absichern.