To update "nulled" software (pirated versions of premium scripts, themes, or plugins), you must perform a manual process since these versions have had their automatic update and licensing systems removed. This process carries significant risks, including website crashes and security vulnerabilities.
Even if you were extremely lucky and installed a nulled plugin with no immediate malware, you would still be facing a significant risk. Premium plugins rely on a valid license key to connect to the developer's update server and receive version updates, bug fixes, and most importantly, .
Example: A nulled update script that, when activated, reaches out to an unseen URL and drops a small shell script allowing persistent access. To the owner it feels like a feature update; to the server, it’s an unwelcome guest.