See the Zero Trust Exchange in action
ZIA and ZPA replace VPN and firewall complexity with a cloud-native proxy architecture — connecting users directly to applications without exposing the corporate network.
The Zero Trust Exchange platform
Six interconnected products that secure users, workloads, and devices — from internet access to private application access to cloud security posture.
Zscaler Internet Access (ZIA)
Cloud-native Secure Web Gateway, CASB, DNS security, and cloud firewall delivered from 160+ data centres worldwide. Replaces on-premises web proxies and perimeter firewalls for internet-bound traffic — inspecting all traffic including TLS 1.3 inline with no performance degradation.
Zscaler Private Access (ZPA)
The industry's leading ZTNA solution — replaces VPNs with app-level zero trust access. Users connect directly to authorised applications, never to the network. Applications are invisible on the internet, eliminating lateral movement and reducing attack surface by up to 95%.
Zscaler Digital Experience (ZDX)
Continuous end-to-end monitoring from device to application — measuring experience quality across Wi-Fi, ISP, cloud, and SaaS. Instantly identifies whether slowness or outages are caused by the device, network, or application — reducing MTTR for IT teams dramatically.
Zscaler Deception
Deploys decoy assets — fake servers, credentials, Active Directory objects, and applications — that attract post-breach attackers. Any interaction with decoys triggers an immediate, zero-false-positive alert — detecting lateral movement with no legitimate traffic generating alerts.
Zscaler Security Posture Management
Agentless CNAPP that identifies misconfigurations, excessive cloud permissions, exposed secrets, and compliance violations across AWS, Azure, and GCP — correlating findings across identity, data, and infrastructure for risk-prioritised remediation.
Zscaler Data Protection (DLP)
Inspects all TLS traffic inline — including access to ChatGPT, Microsoft Copilot and other AI tools — to prevent sensitive data exfiltration, enforce acceptable use policies, and provide visibility into Shadow AI adoption. Over 500 trillion daily signals power AI-driven data classification.
Why organisations choose Zscaler
Zscaler was architected as a cloud-native proxy platform — not a hardware appliance moved to the cloud. Its inline proxy architecture inspects all traffic including TLS 1.3 at scale, eliminating the performance tradeoffs of on-premises inspection appliances.
Zscaler operates 160+ global data centres across six continents — ensuring low-latency connections for users anywhere. Over 500 billion requests processed per day, more than 50× the volume of daily Google searches.
Zscaler is recognised as a Leader in the Gartner Magic Quadrant for Security Service Edge (SSE) — the framework covering ZTNA, SWG, CASB, and FWaaS. SSE is the security component of SASE architecture.
VPNs grant network-level access — once an attacker is in, they can move laterally across all connected systems. ZPA grants app-level access only, making the corporate network completely invisible and blocking the lateral movement that enables ransomware to spread.
Zscaler's Security Cloud prevents over 9 billion security incidents and policy violations every day, informed by 500+ trillion globally sourced intelligence signals — making the platform smarter and more protective with every transaction it processes.
Zscaler serves approximately 45% of the Fortune 500 — with over 8,500 customers across financial services, healthcare, manufacturing, and public sector globally, including NHS trusts and UK government departments.
Frequently asked questions
The Zscaler Zero Trust Exchange is a comprehensive cloud-native security platform that connects users, workloads, IoT/OT devices, and B2B partners to applications using zero trust principles — "never trust, always verify." Based on least-privileged access, its proxy architecture brokers one-to-one connections between users and applications based on identity, context, and business policies — making the corporate network invisible to the internet.
ZIA (Zscaler Internet Access) secures outbound internet traffic — replacing web proxies, cloud firewalls, and CASB for internet-bound traffic from any location. ZPA (Zscaler Private Access) secures access to internal private applications — replacing VPNs with zero trust app-level access. Most enterprise deployments use both: ZIA for internet security and ZPA for private application access.
For cloud-first organisations, Zscaler ZIA provides cloud firewall, SWG, CASB, and DNS security that replaces on-premises NGFW for internet-bound traffic. However, for on-premises data centre segmentation and east-west traffic inspection, dedicated firewalls from Palo Alto Networks or Fortinet remain appropriate. Zscaler and NGFW are complementary, not competing, in hybrid environments.
Secure Access Service Edge (SASE) is Gartner's framework combining SD-WAN (network) and Security Service Edge (security) in a cloud-delivered service. Zscaler provides the SSE component — ZIA (SWG/CASB/FWaaS) and ZPA (ZTNA) — and integrates with SD-WAN partners including Fortinet, Cisco, and Juniper to deliver complete SASE architectures.
Zscaler performs full inline TLS inspection at scale — including TLS 1.3 — across all traffic categories, in its cloud data centres. This eliminates the performance overhead and cost of on-premises TLS inspection appliances. Inspection policies can exempt specific domains (banking, healthcare) to meet privacy requirements, with granular category-level controls.
Yes. Zscaler for IoT and OT extends zero-trust principles to operational technology environments. ZPA can broker access to OT systems for remote engineers and third-party vendors without VPN. Agentless IP anchoring provides internet access and DNS security for IoT/OT devices that cannot run a client agent — without opening firewall ports or creating lateral movement risk.
Deploy Zscaler Zero Trust
Servnet will assess your VPN and firewall estate, design your zero-trust architecture, and manage the full ZIA/ZPA deployment — from architecture design to production go-live.
Compare Zscaler with other vendors
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