You understand that the extension was a copy of a genuine extension?
It was a mistake that he installed the duplicate fraudulent extension. For all we know he could have checked the intended extension code line by line, and then went on to install the trojan horse extension by accident.
It was a mistake that he installed the duplicate fraudulent extension. For all we know he could have checked the intended extension code line by line, and then went on to install the trojan horse extension by accident.