1. Zscaler Web Security Services Your Name Contact Info August 2009 Zscaler Proprietary & Confidential

2. Zscaler: The Leader in Cloud Security Secure, fast and policy-based Internet experience from any place, on any device Singular Focus Twice the functionality at half the price Mitigate business risk Improved Resource Utilization Benefits Zscaler Services

3. 3 Enterprise Users Mobile Devices Road Warrior Web 2.0 Challenges: Security, Bandwidth & More… Web 2.0 Users can send and post content DLP: Blogs, Webmail, IM Web 1.0 Read Only No DLP Data Leakage Data Leakage Risk Up Public Internet Bandwidth Issues No bandwidth issues: HTML pages Streaming & P2P Bandwidth hungry apps (last mile) New Network QoS Issues URL Filtering Static list (almost) Allow or block Web 2.0 – User created content Social Sites, Streaming, Webmail, IM Managed Access Traditional URL Filtering is Not Effective Viruses, Worms (signature) Botnets, XSS, Active Content, Phishing Can’t be detected with signatures Security Threats Web 2.0 is Rendering Traditional Anti-virus Useless Enterprises are struggling to deal with web-related issues Losing ability to enforce policy

4. Botnets + Malware Web 2.0 Control Bandwidth Control Data Leakage Webmail, IM AV Bypass appliances & policy (VPN???) Caching + URL Directory Consolidated Reporting?? Current point products are expensive, inefficient and incomplete Traditional Appliances: Don’t Help with New Challenges Mobile User Road Warrior HQ Users Acquisition & deployment Cost: X boxes On-going Management Cost: Multiple UI/policies, log files Buy, install & maintain water cleaning kit in each home? Customers want this and don’t have Web Logs Remote Office(s) Already installed

5. Zscaler Service

6. Zscaler Service: Secure, Fast & Policy-based Access to Internet Botnets + Malware Web 2.0 Control Bandwidth Control Data Leakage Webmail, IM AV Bypass appliances & policy (VPN???) Caching + URL Directory Consolidated Reporting?? Appliances have limited functionality Web Logs Mobile User HQ Users Remote Office(s) Zscaler Utility Secure Comply Manage Analyze Forward Internet-bound traffic to Zscaler service Inspect & enforce policy Inspect web pages being returned for security CLEAN traffic to user 1 IT admin defines your company policy 2 3 4 Free IT from Operational Security chores: Managing boxes Enable IT to focus on Strategic Security: Policy & Architecture No Acquisition Cost, No Deployment Cost, Little on-going management Annual Subscription Fee Let Utility clean the water X Road Warrior

7. Anti-Virus & Anti-Spyware Advanced Threats Protection Web Access Controls Functionality: Comprehensive, Integrated, Best-of-Breed Eliminates the need to buy multiple point products; Reduces cost Anti-Virus & Anti-Spyware Advanced Threats Protection Web Access Controls URL Filtering Web 2.0 Applications Bandwidth Optimization Anti-Virus & Anti-Spyware Advanced Threats Protection Web Access Controls URL Filtering Web 2.0 Applications Bandwidth Optimization Data Loss Prevention Anti-Virus & Anti-Spyware Advanced Threats Protection Safe Browsing URL Filtering Web 2.0 Control Bandwidth Optimization Data Loss Prevention Forensics & Data Mining Zscaler Global Network

8. Zscaler Technologies & Global Network

9. 9 Zscaler: Five Key Game Changing Technologies IntelliSpect TM Ultra fast content (body) scanning Detect malicious content, Data Leakage, Classify URLs 3 Page Risk Index Dynamically computed Better fraud prevention 4 NanoLog TM 50:1 Log reduction Real-time consolidation Trans-level drill- down 5 Distributed Network, Multi-tenant Architecture Deliver ultra-low latency, & High Reliability 1 10 Gbps Platform - Latency in Micro-secs 64-bit Architecture, Zscaler TCP stack, drivers; SSMA TM (Single Scan Multi Action) 2

10. 10 Zscaler Global Distributed Network Delivers Rapid Response Time (ultra-low latency) & High Reliability EN2 EN3 Central Authority Enforcement Node (EN1) Brain/Nervous system, Policy, Updates, Health of the Cloud 1 Onramps to Internet, Traffic processing, Policy execution 2 When user moves from city A to city B, the policy follows him, her traffic is directed to the nearest EN 3 Logs from all locations go to NanoLog (real-time consolidated reporting) 4 NanoLog

11. ProductionComing Shortly Fremont Atlanta Mexico City DC Chicago Toronto Sao Paulo Buenos Aires Tel Aviv London Paris Mumbai Moscow Tokyo Beijing Adelaide Johannesburg Hong Kong Singapore Monterey Brussels Frankfurt Dubai Delivers Rapid Response Time & High Reliability Bogota Zscaler Global Network Delivers Rapid Response Time & High Reliability

12. Summary

13. "Chaudhry has a great track record of anticipating the [emerging, new] market.“ “We are glad to partner with Zscaler to provide comprehensive functionality using their SaaS model to deliver higher value and greater ROI.” "With data centers distributed worldwide, Zscaler has done an excellent job building a scalable infrastructure to support customers without a noticeable performance hit.” Experts’ Vote of Confidence in Zscaler Zscaler has received many prestigious awards/recognitions:

14. Zscaler Summary Increase Security & Productivity While Reducing Costs Security Integrated, Comprehensive & On-demand Web 2.0 threat protection Global Distributed Architecture SaaS based,highly scalable and reliable model Global policy – single policy follows user Compliance & Real-Time Reporting Consolidated reporting and tracking in real-time Centralized management with application-based policies Cost Savings No appliance and software related costs Operational expense vs. Capital expense Simplicity Eliminates complex point solutions Easy to deploy and manage policies

15. End