Given a part of privacy policy text, classify it into one of these categories: 
 (1) First Party Collection/Use (how and why a service provider collects user information), 
 (2) Third Party Sharing/Collection (how user information may be shared with or collected by third parties), 
 (3) User Choice/Control (choices and control options available to users), 
 (4) User Access, Edit, & Deletion (if and how users may access, edit, or delete their information), 
 (5) Data Retention (how long user information is stored), 
 (6) Data Security (how user information is protected), 
 (7) Policy Change (if and how users will be informed about changes to the privacy policy).

A user's user profile is retained for a limited (but unspecified) period of time to maintain service operations or security.
Data Retention
This passage indicates that user information is retained for a limited period of time to maintain service operations or security. This is an example of how long user information is stored (retained), so the answer is Data Retention..