oauth device code flow

The OAuth device code flow is an authentication mechanism that allows users to sign in on devices with limited input capabilities, such as smart TVs or command-line interfaces, by completing the login on a separate browser. On WindowsForum.com, discussions focus on how this flow is exploited in phishing attacks like EvilTokens, which target Microsoft 365 accounts. These attacks abuse the legitimate device authorization grant flow to trick users into approving attacker-controlled sessions, bypassing traditional multifactor authentication. The recurring theme is that securing authentication requires protecting the entire flow, not just adding MFA. Topics include Microsoft 365 security, phishing-as-a-service kits, and enterprise IT defense strategies.