Can you teach employees how to phish to help them avoid phishing? - Fractional CISO - Virtual CISO
ThePhish: 'the most complete' non-commercial phishing email analysis tool | The Daily Swig
Evaluation of 7 Open Source Phishing Threat Intel Feeds
Nile Phish: Large-Scale Phishing Campaign Targeting Egyptian Civil Society - The Citizen Lab
SniperPhish: An all-in-one open-source phishing toolkit - Help Net Security
GitHub - dionach/PhEmail: PhEmail is a python open source phishing email tool that automates the process of sending phishing emails as part of a social engineering test
How Open-Source Phishing Tools Compare With Paid Professional Solutions
Guide to phishing simulation tools
GoPhish Phishing Simulation Guide: Linux & Open-Source SMTP | by Ranjan Singh | Medium