Zscaler is the world's largest security cloud delivering SSE (Security Service Edge). It unifies ZTNA, SWG, CASB and DLP to enforce true Zero Trust access for users, devices and applications.
Zscaler connects users, devices and applications directly using Zero Trust principles — without ever placing them on the corporate network. ZPA (Zero Trust Private Access) verifies identity and device posture before granting least-privilege access to a specific application, while ZIA (Zscaler Internet Access) inspects all internet and SaaS traffic in the cloud with integrated SWG, CASB, DLP and sandboxing. With 150+ global points of presence, traffic is processed close to the user without backhauling.
As remote work and SaaS adoption became the norm, the traditional perimeter model built on VPNs and hub-and-spoke firewalls has become a liability — a single compromised credential can expose the entire internal network. Zscaler eliminates this exposure by never trusting the network. Users get the same policy enforcement from any location, and security teams get a single console to observe global traffic.
Expernet is a Zscaler Premier Partner — the highest partner tier — with certified engineers across ZIA, ZPA and ZDX. We support customers through PoC, roadmap design, policy architecture, migration from legacy VPN, and ongoing operations, with bilingual English/Korean technical support and deep experience in finance, manufacturing and public sector deployments in Korea and APAC.
Verify user and device, then connect to apps with least privilege — no VPN tunnel, no lateral exposure.
All internet traffic inspected in the cloud with integrated SWG, CASB, DLP and sandbox.
Real-time monitoring of end-user digital experience across SaaS and cloud applications.
Block sensitive data leakage across cloud uploads, email and web in real time.
Visibility and control over sanctioned and unsanctioned SaaS apps; shadow IT discovery.
ML models trained on trillions of daily transactions stop zero-day phishing and ransomware at the edge.
Zscaler reference configuration
ChallengeRemote workforce caused VPN bottlenecks and over-exposed the internal network.
SolutionDeployed Zscaler ZPA with least-privilege per-application access; fully removed VPN and implemented micro-segmentation.
OutcomeVPN traffic eliminated · 75% fewer security incidents · 40% productivity gain for remote staff.
From technical evaluation to deployment and operations — we support the entire lifecycle.
