The website plugin allows visitors to securely send files directly to your HostedFTP site without needing login credentials, which can lead to spam uploads if anyone can access the upload tool. HostedFTP allows users to add additional levels of security from the Plugin > Customize page:

Security Options #
1. Require a password to control who can send files to you through the plugin
2. Add a security image (CAPTCHA) to prevent malicious websites from flooding your plugin with spam
3. Add a quota to restrict the size of the files sent to you through the plugin
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