Hackers often take popular security plugins, "crack" them to remove license checks, and then inject malicious code (malware). When a site owner installs it to improve security, they unknowingly hand over the "keys to the castle" to the person who uploaded the file.
If you are looking for this file to secure a website, it is highly recommended to use the official Solid Security (formerly iThemes) site to ensure the code hasn't been tampered with. iThemes Security Pro v7.3.0 - Plugins - WPLOCKER.COM ithemessecuritypro730.rar
Once installed, these files can be used to inject hidden links or phishing pages into a website, destroying its search engine ranking and reputation. Plugin Background Hackers often take popular security plugins, "crack" them