Default Risk
The risk that companies or individuals will be unable to pay the contractual interest or principal on their debt obligations.
Investopedia Commentary
In other words, this is the risk that you will not get paid.
Related Links
Corporate Bonds: An Introduction To Credit Risk
Junk Bonds: Everything You Need to Know
Bond Basics Tutorial
Spotting Disaster
See also: Bankruptcy, Cross Default, Default, Mortgage
default risk