Thousands of Public Google Cloud API Keys Exposed with Gemini Access After API Enablement
Feb 28, 2026
Generative AI / API Security
New research has found that Google Cloud API keys, typically designated as project identifiers for billing purposes, could be abused to authenticate to sensitive Gemini endpoints and access private data. The findings come from Truffle Security, which discovered nearly 3,000 Google API keys (identified by the prefix "AIza") embedded in client-side code to provide Google-related services like embedded maps on websites. "With a valid key, an attacker can access uploaded files, cached data, and charge LLM-usage to your account," security researcher Joe Leon said , adding the keys "now also authenticate to Gemini even though they were never intended for it." The problem occurs when users enable the Gemini API on a Google Cloud project (i.e., Generative Language API), causing the existing API keys in that project, including those accessible via the website JavaScript code, to gain surreptitious access to Gemini endpoints without any warning or notice. Th...
