What Does Phishing Kit Mean?

A phishing kit is a collection of different software utilities that allow an individual to launch and manage a phishing scam or campaign. It enables individuals with little or no knowledge of phishing practices to engage in them.

Techopedia Explains Phishing Kit

The objective behind a phishing kit is to provide potential phishers with all the tools they need to engage in scams or other illegal practices that look legitimate and have a high chance of becoming successful (in deceiving recipients). Phishing kits are created by professional phishers and can be downloaded as a complete set from the Internet.