New Phishing Attacks Exploiting OAuth Authorization Flows (Part 1)
This blog series expands upon a presentation given at DEF CON 29 on August 7, 2021. Phishing attacks are starting to evolve from the old-school faking of login pages that harvest passwords to attacks that abuse widely-used identity systems such as Microsoft Azure Active Directory or Google Identity, both of which utilize the OAuth authorization protocol for granting permissions to third-party applications using your Microsoft or Google identity.