Comet, an AI assistant, faces the challenge of malicious prompt injection, which manipulates its decision-making without exploiting software bugs. To combat this, Perplexity employs a defense-in-depth strategy that includes real-time detection, user controls, and transparent notifications to maintain user trust and safety.

The article discusses a security vulnerability known as prompt injection that can lead to remote code execution (RCE) in AI agents. It outlines the mechanisms of this exploit, the potential impact on AI systems, and the importance of implementing robust security measures to mitigate such risks. The findings underscore the need for vigilance in the development and deployment of AI technologies.

Google DeepMind has released a white paper detailing the security enhancements made to Gemini 2.5, focusing on combating indirect prompt injection attacks which pose cybersecurity risks. The article highlights the use of automated red teaming and model hardening to improve Gemini's defenses, ensuring the AI can better recognize and disregard malicious instructions while maintaining performance on normal tasks.