how to implement anti phishing mechanisn for a web application

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we have internal portal which we will use for configuration. How to implement anti phishing mechanism 1.which mechanism to use
2.how to use
thanks in advance

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Igarr On BEST ANSWER

Phishing protection are not only at your application level but also by making your users aware of what a phishing is. Even top-noch banks are vulnerable to phishing attacks.

I would suggest you:

A mechanism i've seen in a few banks is :

  • Make the user insert his username
  • Show an image only know by him that user chose previously at registrarion.
  • Make the user accept that he/she choose that image previously
  • Make the user insert his password

This way if a user is a victim of a phishing attack, the attacker must know not just his username but also the image that the user choose.

Also in case the user doesn't exists you should set up a fake image so you prevent a user enumeration attack.