SentinelOne to acquire Prompt Security

SentinelOne acquires Prompt Security to enhance AI-native cybersecurity, targeting AI-related data protection and secure generative AI usage in enterprises.

  • Friday, 8th August 2025 Posted 2 months ago in by Aaron Sandhu

SentinelOne®, the renowned AI-native cybersecurity provider, has announced a definitive agreement to acquire Prompt Security, a leader in runtime AI security. This acquisition is a key step in expanding SentinelOne’s Singularity™ Platform to secure the burgeoning utilisation of generative AI in workplaces, ensuring real-time visibility and data protection without stifling innovation.

Leveraging Prompt Security’s expertise, SentinelOne aims to provide CISOs and IT leaders with the necessary tools to enable safe and scalable AI adoption. The acquisition aims to unlock growth and further platform expansion for SentinelOne and its partners.

Prompt Security offers organisations immediate access to GenAI usage data in enterprises, ensuring secure and controlled AI usage. This prevents shadow AI risks and facilitates the adoption of tools like ChatGPT and other LLMs without sacrificing security.

The combination of SentinelOne’s leading endpoint, cloud, data, and SecOps capabilities with Prompt Security’s advanced AI defense platform offers a comprehensive approach to securing AI in the modern enterprise, integrating seamlessly from infrastructure to usage.

“AI is the most transformative force in the world today—but without security, it becomes a liability,” said Tomer Weingarten, CEO of SentinelOne. “With Prompt Security, we’re making it possible for every company to fully embrace GenAI and agentic AI without compromising safety and security. This is the foundation for secure AI adoption at scale.”

Prompt Security’s groundbreaking technology addresses the urgent challenge of protecting against risks associated with AI adoption. It operates across browsers, desktop applications, and APIs, offering real-time interaction protection and halting prompt injections, data leakage, and misuse before they escalate.

With Prompt Security's capabilities, SentinelOne will provide customers with:

  • Real-time AI visibility across the enterprise, enhancing SentinelOne’s existing endpoint capabilities.
  • Policy-based controls to ensure safe AI usage and prevent data leakage.
  • AI Attack prevention against prompt injections and other AI-related threats.
  • Comprehensive model-agnostic coverage across major LLM providers.
  • MCP gateway security for secure interactions between AI applications.

This acquisition significantly reinforces SentinelOne's domain in securing the modern enterprise from endpoints to cloud identity and now, to GenAI. SentinelOne has been a pioneer of AI for security teams being the first pure cybersecurity company to introduce agentic and GenAI into it's platform

Itamar Golan, co-founder of Prompt Security, echoed that both companies share a vision for empowering organisations to use AI as an advantage while maintaining robust real-time protection. “As enterprise adoption of GenAI and agentic AI accelerates, the security and privacy risks are rapidly shifting from theoretical to operational. SentinelOne shares our passion for empowering teams and organisations to embrace AI as a distinct advantage, while delivering real-time, automated protection built for the AI-native world. By bringing together our pioneering technology with SentinelOne’s incredible platform, team, channel and customer base, we can make AI security a reality for virtually every organisation in the world.”

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