Thousands of Corporate Secrets Were Left Exposed. This Guy Found Them All

Security researcher Bill Demirkapi unveiled a massive trove of leaked developer secrets and website vulnerabilities at the Defcon conference in Las Vegas. Using unconventional data sources, Demirkapi identified over 15,000 exposed secrets, including credentials for Nebraska's Supreme Court IT systems and Stanford University's Slack channels. The researcher also discovered 66,000 websites with dangling subdomain issues, making them vulnerable to attacks. Among the affected sites was a New York Times development domain. Demirkapi's tack involved scanning VirusTotal's database and passive DNS replication data to identify vulnerabilities at scale. He developed an automated method to revoke exposed secrets, working with companies like OpenAI to implement self-service deactivation of compromised API keys.

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