# Access control
<a name="gamesec04"></a>


|  GAMESEC04: How do you block unauthorized access to game content?  | 
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 Modern games include a significant amount of content, such as downloadable content (DLC), which is an important aspect of player engagement and game monetization. Players expect an ongoing stream of new characters, levels, and challenges, requiring game developers to keep up with a constant demand for fresh content to retain players. The variety and the size of the content can vary greatly depending on the type of the game and the device on which the game is played. Regardless of a game's system, protect the game's content from unauthorized access. 

**Topics**
+ [GAMESEC04-BP01 Restrict access of downloadable content to authorized clients and users](gamesec04-bp01.md)
+ [GAMESEC04-BP02 Limit origin access to authorized content delivery networks (CDNs)](gamesec04-bp02.md)
+ [GAMESEC04-BP03 Implement geographic restrictions to limit unauthorized access](gamesec04-bp03.md)
+ [GAMESEC04-BP04 Restrict access to content with digital rights management (DRM) solutions](gamesec04-bp04.md)