This Cybersecurity Growth Stock Is Up 40% in 2026, But It’s Still a Bargain Compared to CrowdStrike and Palo Alto Networks
Anthony Di Pizio, The Motley Fool
Mon, August 3, 2026 at 10:50 PM GMT+5:30
5 min read
Tenable (NASDAQ: TENB) is a cybersecurity company that specializes in exposure management, a proactive form of enterprise protection that identifies vulnerabilities in corporate networks before attackers can exploit them. Hackers are currently using artificial intelligence (AI) to find these weaknesses faster than ever before, so demand for exposure management is surging
As a result, Tenable stock has soared by over 40% this year. But it has a market capitalization of just $3.6 billion, so it’s still worth a fraction of cybersecurity giants CrowdStrike and Palo Alto Networks, which have a combined market cap of over $450 billion
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Moreover, Tenable stock looks like a bargain compared to its peers based on one widely used valuation metric, which could open the door to significant long-term upside
Exposure management is entering a new era
Tenable is the owner of Nessus, which is the cybersecurity industry’s most accurate and most widely deployed tool for identifying vulnerabilities. It constantly scans devices, operating systems, and networks for weak spots, so they can be patched before they are exploited. However, Nessus alone is no longer enough, so it has become an onramp to Tenable’s growing portfolio of more advanced products
The company built a comprehensive exposure management platform called Tenable One, which is designed to fulfill every possible requirement enterprises might have. It’s powered by an AI engine called Hexa AI, which learns how different corporate assets interact so that it’s equipped to flag vulnerabilities. Moreover, it autonomously runs scans to ensure an appropriate security posture is maintained, and it even coordinates specialized AI agents that can implement fixes when necessary
Tenable One also features a specific tool to protect enterprises when their employees are deploying AI software. It’s called AI Exposure, and it constantly monitors how AI applications are being used and what data is at risk, so it can quickly uncover vulnerabilities. It can also identify new, sophisticated tactics like prompt injection, which is when hackers instruct internal AI applications to hand over sensitive data
During the second quarter, Tenable One accounted for half of Tenable’s new sales, which suggests customers are leaving individual products behind and opting for the comprehensive all-in-one platform solution instead
