# defender-security/6.3.0/lib/README.md

Defender Security – Malware Scanner, Login Security & Firewall, version 6.3.0. 23 lines.

- Page: https://pluginprobe.com/plugins/defender-security/6.3.0/code/lib/README.md
- Raw: https://pluginprobe.com/plugins/defender-security/6.3.0/raw/lib/README.md
- Modified: 2026-08-24T08:19:12+00:00

Line numbers below start at 1. Link to a line or a range by appending a fragment to the
page URL, for example `https://pluginprobe.com/plugins/defender-security/6.3.0/code/lib/README.md#L10-L20`.

```markdown
## Defender Lib Directory

This directory contains prefix namespaces and classmap classes to avoid conflicts with plugins that include the same package.
The contents of the `packages` and `classes` directories are automatically generated by `composer install` and `composer update`.

All namespaces are prefixed with `WPMU_DEV\Defender\Vendor` and classmap classes prefixed with `WPDEF_Vendor_`.

**_Do not_ make direct changes in the files contained in `packages` or `classes` directories! Any changes to the files will be lost!**

### Add Packages

Add packages to `require-dev` in order to avoid including the original dependencies in the root autoloader.
`require-dev` dependencies will be ignored in production and won't be added to vendor directory.

1. Add package to `require-dev` section of `lib/composer.json`
2. Add package slug to `extra/mozart/packages` section of `lib/composer.json`
3. Run `composer run-script build-lib` from the root directory (After executing this command you should see the package in `packages/VendorName/PackageName` or `classes`)

### Update Packages

1. Change the package version in `lib/composer.json`
2. Run `composer run-script build-lib` from the root directory.

```