### Question
What is the definition of security interest?


### Answer
The definition of **security interest** is as follows in *26 U.S.C. § 6323*:

> any interest in property acquired by contract for the purpose of securing payment or performance of an obligation or indemnifying against loss or liability

#### Citation:
  - *26 U.S.C. § 6323*
  - Heading: **Subtitle F-Procedure and Administration > CHAPTER 64-COLLECTION > Subchapter C-Lien for Taxes**

