---
title: "Implementation"
url: https://docs.catalyst.zoho.com/en/serverless/help/security-rules/implementation/
service: Serverless
type: general
---



# Implementation

You can access and customize security rules definitions for each function from the Catalyst console. As mentioned earlier, the security rules definitions are created for a function automatically when it is created. Similarly, if you delete a function, Catalyst will delete its security rules definitions automatically.

### Modify Definitions in Security Rules

To modify security rules definitions for a Basic I/O or Advanced I/O function in Catalyst:

1. Navigate to Security Rules under *FAAS* in the Catalyst Serverless console.



2. Modify the definitions as required.


3. Click Save.

The modified definitions will be applied for the function.

You must follow these guidelines while configuring definitions in Security Rules:

* You must follow the syntax of a JSON file format while configuring security rules.
* If you delete the methods or authentication parameters from the file, the default configurations will be automatically enabled for your function.
* You will not be able to provide any values for a parameter which are not the supported values.

The console will display an error if you violate any of these guidelines.

The editor window enables auto-completion of your code, and also provides tools that enrich your coding experience. Right-click on the editor window to open the tools.