Zscaler Resilience
Uninterrupted business continuity for
customers in all scenarios with the industry’s
most resilient security cloud
Zscaler Resilience™ is a complete set of capabilities that ensures uninterrupted business continuity for customers during blackouts, brownouts, or catastrophic black swan events

Business-critical cloud applications require resilient services
Mass adoption of cloud services has accelerated innovation and saved organizations millions. However, increased reliance on cloud resources for mission-critical services means organizations must plan for possible unexpected outages.
We built the Zscaler Zero Trust Exchange™ to be one of the most powerful and resilient security clouds in the industry. Zscaler Resilience leverages the platform's cloud native infrastructure and operational excellence to offer high availability and serviceability at all times.
Business-critical cloud applications require resilient services
Mass adoption of cloud services has accelerated innovation and saved organizations millions. However, increased reliance on cloud resources for mission-critical services means organizations must plan for possible unexpected outages.
We built the Zscaler Zero Trust Exchange™ to be one of the most powerful and resilient security clouds in the industry. Zscaler Resilience leverages the platform's cloud-native infrastructure and operational excellence to offer high availability and serviceability at all times.
Resilient Cloud Infrastructure
Production cloud that
you can trust
Capacity
- Enough processing capacity in all data centers
- High bandwidth and availability
Availability
- Automatic failover from data center one to data center two
- Ability to control routing in case of network path issues
Performance
- Internet exchange peering
- Career-neutral data centers
- Hardware for TLS decryption
Security
- Rigid SOD matrix based on least-privileged access
- Zero trust access, multifactor authentication, including physical tokens and ephemeral keys
Built on a resilient multitenant architecture

Resilient operational processes
In addition to our already resilient infrastructure, Zscaler has perfected a set of equally resilient operational processes through our experience operating our inline security cloud—the world’s largest—for over 12 years of service and counting.

Software Development and QA
Agility and reliability
- Specialized testing : system, scale & load, customer escape analysis
- Co-existence : VPN clients, key apps
- Cloud-in-the-box simulations
Cloud Deployment
Cloud scale with limited risk exposure
- Purpose-built deployment infrastructure (Z-CDN)
- Rolling deployments with strict backward/ forward compatibility
- Expert reviews and unit testing of signatures
Incident/Problem Management
Communication and continuous improvement
- Trust Portal for customer communication
- Well defined customer escalation process
- Post-mortem and transparent RCA
Cloud Monitoring
Proactive detection and auto-remediation
- 24/7 NOC and SOC auto-monitoring & response
- Predictive monitoring with ML + External probing
- Audited and practiced crisis response (BCP)
Best-in-class cloud resilience from the world’s top-rated and most deployed security service edge (SSE) platform
Our comprehensive set of capabilities is built to handle all failure scenarios



Blackout
Data center outage /
connectivity issues
- Auto/manual tunnel failover from WAN edge router
- Client connector auto failover to secondary gateway
- Zscaler SD-WAN Connector path selection
Brownout
Hot cluster / connectivity
issues
- Dynamic performance-based service edge selection
- Time-bound data center exclusion (sub-clouds)
- SD-WAN dynamic path selection
- Zscaler BGP controls
- Data center load sharing
Catastrophic Failure
Cloud outage / connectivity issues
- Disaster recovery (DR)
- Physical cloud segmentation

Low Impact

High Impact
Zscaler Resilience Audit™
Complementing these capabilities across blackouts, brownouts, and catastrophic failures, Zscaler Resilience Audit™ is a new customized service that helps customers prepare their business continuity plans by identifying areas for improvement and closing gaps before unforeseen events can cause disruptions.
Making business
continuity a priority

Business continuity with uninterrupted security
Apply critical security policies while accessing internet, SaaS and private apps even during catastrophic events

Seamless experience across all failure scenarios
Built on the best-in-class cloud infrastructure and operational excellence to handle blackouts, brownouts and catastrophic events

Reduced costs and complexity
Avoid costly business interruptions or loss of productivity due to lack of access to critical apps