So recently I wanted to integrate Duo two-factor authentication into one of the client’s projects but I didn't find much documentation support on CakePhp3. After struggling for a couple of days to figure out how to integrate DUO 2FA with CakePhp3, I achieved success in integration and so decided to write this blog so that I can genuinely contribute and offer a glimpse to all those developers who are looking out for similar blogs to resolve their issues.