Executive Summary
Google Cloud explains prompt injection, which can override instructions, exfiltrate data or trigger unwanted tool actions, and gives practical mitigations for developers.
What Happened
Google Cloud explains prompt injection as an attack that can override instructions, exfiltrate data, or trigger unwanted actions through LLM-connected tools. The post focuses on practical mitigations for developers deploying generative AI systems with external data and actions.
Vulnerability / Attack Technique
Prompt injection (guidance)
Technical Mechanism
Developer guidance on mitigating the risk.
AI Security Category
LLM01:2025 Prompt Injection
Part of the Prompt Injection topic.
Relevant Frameworks
RealGround Analysis
Vendor guidance aligned with OWASP. RealGround analysis: focus first on what connected tools can do.
Recommended Controls
- Limit actions available to LLM-connected tools
Related RealGround Service
Secure AI Agent Build · or start with the free AI Agent Security Scanner.
Sources
Google Cloud Blog: https://cloud.google.com/blog/products/identity-security/mitigating-prompt-injection-attacks-in-generative-ai-applications
Summary and analysis written by RealGround from the source above; last updated 2026-10-18.