But one fateful morning, the client’s site crashed. Error messages flooded in. Users couldn’t access the store, and orders were vanishing. Panicked, Alex investigated and discovered malware disguised in the pirated plugin had infected the site. Sensitive customer data—including emails and payment details—had been exposed.

software is premium code that has been modified to bypass license key requirements. Krishang Technolab What is WP Ultimate CSV Importer Pro? The legitimate version, developed by Smackcoders

A "nulled" version of a plugin refers to a legitimate premium plugin that has been modified to remove licensing restrictions, allowing it to be used without payment. Avoiding these versions is critical for several reasons:

Enable "Download external images to media library" if your CSV contains image links.