🚨🚨🚨 Cal.com founder details advanced OAuth phishing attack 🚨🚨🚨

ahboyashreads (@ahboyashreads), Apr 21, 2026, 14:25 UTC

🚨🚨🚨 Cal.com founder details advanced OAuth phishing attack 🚨🚨🚨 Attackers no longer create fake login pages. Instead, they abuse real Google OAuth flows through a legitimate-looking third-party app How it works • You receive a meeting invite (e.g. Cal.com, Calendly, or similar scheduling tools) • In the “Additional notes” or description, there’s a link that looks exactly like a normal Google Doc or .docx file • You click the “document” link • The real Google OAuth screen appears instantly, instead of opening a document, you’re taken to an official Google “Sign in with Google” page that s…

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