Network Security Market to Exceed $26 B in 2025 as SSE and WAF Lead Cloud-Delivered Expansion, According to Dell'Oro Group

Cloud-Delivered Security Continues to Outperform while Hardware-centric Segments Normalize

REDWOOD CITY, Calif., Dec. 4, 2025 /PRNewswire/ -- According to a recently published report from Dell'Oro Group, the trusted source for market information about the telecommunications, security, networks, and data center industries, global Network Security revenue surpassed $6 B in 3Q 2025 and is on track to exceed $26 B for the full year 2025. Growth remained anchored in cloud-delivered security controls, led by Security Service Edge (SSE) and Web Application Firewalls (WAF). At the same time, traditional hardware firewall appliances continued to advance at a more measured pace.

"The gap between cloud-native agility and legacy hardware has never been starker; while the total market grew 9 percent, SSE surged 20 percent, and WAF climbed 12 percent, proving that the edge is where the modern security budget is actually being spent," said Mauricio Sanchez, Sr. Director, Enterprise Security and Networking at Dell'Oro Group. "We are seeing a clear bifurcation in the market: traditional firewall appliances are growing in the low single digits as refresh cycles normalize, but the urgent demand for decentralized access and robust application protection is fueling a massive migration of value to the cloud edge."

Additional highlights from the 3Q 2025 Network Security Quarterly Report:

About the Report

The Dell'Oro Group Network Security Quarterly Report includes manufacturers' revenue covering the ADC, Firewall, SSE, traditional SWG appliances, and WAF product segments. Moreover, SSEs are further broken down across four primary functions: CASB, FWaaS, SWG, and ZTNA. The report also splits many segments by form factor: physical, virtual, and SaaS. To purchase this report, please contact us at [email protected].

About Dell'Oro Group

Dell'Oro Group is a market research firm that specializes in strategic competitive analysis in the telecommunications, security, enterprise networks, and data center markets. Our firm provides in-depth quantitative data and qualitative analysis to facilitate critical, fact-based business decisions. For more information, contact Dell'Oro Group at +1.650.622.9400 or visit https://www.delloro.com.

SOURCE Dell'Oro Group