update: SECURITY.md

Author: limuyang2

SECURITY.md

@@ -2,20 +2,16 @@
 
 ## Supported Versions
 
-Use this section to tell people about which versions of your project are
-currently being supported with security updates.
-
-| Version | Supported          |
-| ------- | ------------------ |
-| 5.1.x   | :white_check_mark: |
-| 5.0.x   | :x:                |
-| 4.0.x   | :white_check_mark: |
-| < 4.0   | :x:                |
+| Version  | Supported          |
+| -------- | ------------------ |
+| 4.3.x    | :white_check_mark: |
+| < 4.0.0  | :x:                |
 
 ## Reporting a Vulnerability
 
-Use this section to tell people how to report a vulnerability.
+If you discover a security vulnerability, please report it by opening an issue on [GitHub Issues](https://github.com/CymChad/BaseRecyclerViewAdapterHelper/issues).
 
-Tell them where to go, how often they can expect to get an update on a
-reported vulnerability, what to expect if the vulnerability is accepted or
-declined, etc.
+- Provide a clear description of the vulnerability and steps to reproduce it.
+- We will acknowledge your report within 7 business days and keep you updated on the progress.
+- Once confirmed, we will release a fix as soon as possible depending on the severity.
+- If the report is declined, we will explain the reason.