Who is zscaler

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Last updated: April 8, 2026

Quick Answer: Zscaler is a cloud security company founded in 2008 by Jay Chaudhry that pioneered the Security Service Edge (SSE) model. As of 2024, it serves over 7,000 customers globally, including 40% of the Fortune 500, and processes over 300 billion transactions daily through its Zero Trust Exchange platform.

Key Facts

Overview

Zscaler is a pioneering cloud security company that has fundamentally transformed how organizations protect their digital assets. Founded in 2008 by cybersecurity veteran Jay Chaudhry, the company emerged during a period when traditional perimeter-based security models were becoming increasingly inadequate against evolving threats. Zscaler introduced the revolutionary concept of Security Service Edge (SSE), moving security from hardware appliances to a globally distributed cloud platform.

The company's growth trajectory has been remarkable, going public on NASDAQ in March 2018 under the ticker symbol ZS. Today, Zscaler serves over 7,000 customers worldwide, including 40% of Fortune 500 companies. The platform processes an astonishing 300 billion transactions daily across more than 150 data centers globally, making it one of the largest security clouds in the world.

How It Works

Zscaler operates through its Zero Trust Exchange platform, which implements security as a cloud service rather than relying on traditional hardware appliances.

Key Comparisons

FeatureZscaler Cloud SecurityTraditional Firewall/VPN
ArchitectureCloud-native, distributed across 150+ data centersHardware-based, centralized at corporate locations
Performance ImpactReduces latency by routing directly to cloud appsIncreases latency through backhauling to data centers
ScalabilityAutomatically scales to handle traffic spikesRequires hardware upgrades for capacity increases
MaintenanceFully managed service with automatic updatesManual patching and configuration required
Cost StructureSubscription-based operational expenditureCapital expenditure for hardware plus maintenance

Why It Matters

As cybersecurity threats continue to evolve and remote work becomes permanent for many organizations, Zscaler's cloud-native approach represents the future of enterprise security. The company continues to innovate, recently expanding into areas like data protection and workload security, positioning itself as a comprehensive platform for the zero trust era. With cyber attacks increasing by 15% annually and cloud adoption accelerating, Zscaler's relevance and impact will only grow in the coming years.

Sources

  1. WikipediaCC-BY-SA-4.0

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