SentinelOne paid $180m for previously-announced Prompt Security

SentinelOne paid $180m for previously-announced Prompt Security

SentinelOne has acquired Prompt Security for $180 million, marking a strategic move in the evolving landscape of AI-driven cybersecurity. The acquisition aims to secure AI workflows, addressing critical issues such as data leakage and prompt injection risks in enterprise AI adoption. This deal underscores SentinelOne's commitment to leading the AI security revolution.

The acquisition aligns with the company's strategic pivot towards securing the next frontier of digital transformation—generative AI (GenAI) and agentic AI workflows. By integrating Prompt's runtime security capabilities into its AI-native Singularity platform, SentinelOne is enhancing its competitive edge in the AI cybersecurity market. This move is particularly significant as enterprises increasingly adopt AI tools like ChatGPT, Gemini, and Claude, driving the market's explosive growth.

The AI cybersecurity market is projected to grow at a 24.4% CAGR through 2030-2032, driven by demand for GenAI protection and compliance solutions [1]. SentinelOne's acquisition of Prompt Security positions it to capture a significant share of this growing market, which is expected to expand at a 21.3% CAGR from 2025 to 2033 [2].

SentinelOne's financial performance has been robust. In Q2 2026, the company reported $242.2 million in revenue, a 22% year-over-year increase, and crossed $1 billion in Annual Recurring Revenue (ARR) [2]. The acquisition of Prompt Security further strengthens SentinelOne's value proposition at a time when AI security is becoming a boardroom priority.

Despite strong fundamentals, SentinelOne's stock has traded at a discount to intrinsic value. At a price-to-sales (P/S) ratio of 6.75x, it trades below its proprietary "Fair Ratio" of 7.04x and significantly lower than peers like CrowdStrike (EV/Sales of 24x) and Palo Alto Networks (13x) [3]. Analysts project a 30-100% upside, suggesting that the market may be underestimating SentinelOne's long-term potential.

The acquisition of Prompt Security is not just a tactical move; it is a strategic repositioning to lead the AI security revolution. By addressing the critical gaps in enterprise AI adoption and offering a defensible, scalable platform, SentinelOne is building a moat around its AI-native capabilities. For investors, this represents a compelling opportunity to bet on a company that is not only adapting to the AI era but actively shaping it.

References:
[1] https://www.grandviewresearch.com/industry-analysis/artificial-intelligence-cybersecurity-market-report
[2] https://finance.yahoo.com/news/q2-deep-dive-platform-expansion-053111281.html
[3] https://www.sentinelone.com/blog/a-new-chapter-for-ai-and-cybersecurity-sentinelone-acquires-prompt-security/
[4] https://www.fortunebusinessinsights.com/artificial-intelligence-in-cybersecurity-market-113125