Vercel April 2026 Security Incident: How a Compromised OAuth App Led to a Major Breach
On April 19, 2026, Vercel disclosed that attackers compromised an employee's Google Workspace account through a malicious OAuth 2.0 application originating from Context.ai, a third-party AI tool. This post breaks down how the attack worked, what OAuth scopes were abused, and how organizations can detect and respond to these threats with and without SlashID.