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AI SecurityEmerging1 sourceApr 2, 2026 · 16:00via Google Online Security Blog

Google Workspace’s continuous approach to mitigating indirect prompt injections

Brief

Posted by Adam Gavish, Google GenAI Security Team Indirect prompt injection (IPI) is an evolving threat vector targeting users of complex AI applications with multiple data sources, such as Workspace with Gemini. This technique enables the attacker to influence the behavior of an LLM by injecting malicious instructions into the data or tools used by the LLM as it completes the user’s query.

This may even be possible without any input directly from the user.

IPI is not the kind of technical problem you “solve” and move on. Sophisticated LLMs with increasing use of agentic automation combined with a wide range of content create an ultra-dynamic and evolving playground for adversarial attacks. That’s why Google takes a sophisticated and comprehensive approach to these attacks.

Read more on Google Online Security Blog