Comtact Limited

Zscaler Private Access - VPN-less Remote Access Service

Zscaler Private Access delivers policy-based, secure access to private applications and assets without the cost, or security risks of a VPN. Users get all of the benefits of Zscaler’s marketing-leading Internet Security platform, as well as granular, policy-based access to internal resources from a single point.


  • Secure private application access, without exposing applications to the Internet
  • Decouples private internal applications from the physical network
  • No VPN client to launch, or exit
  • Microsegmentation - Specific application access rules by user or group
  • Global visibility for users and applications
  • Single console for policy definition and management


  • Users get application access without network access
  • Users only see apps/resources they are authorised to access
  • No need to buy, maintain, or upgrade VPN hardware
  • No need to set up site-to-site VPNs
  • No need to login to a VPN client
  • Rapid deployment - no comlpex NAT/ACL/firewall policies to configure
  • Reduces Capex and Opex compared to traditonal VPNs


£11.82 to £190.09 per user per year

  • Education pricing available

Service documents


G-Cloud 11

Service ID

5 9 2 6 8 5 4 7 5 0 8 4 6 7 7


Comtact Limited

Eric Vogel

03452 75 75 75

Service scope

Service scope
Software add-on or extension No
Cloud deployment model Public cloud
Service constraints Configure appropriate security and access settings in the ZPA admin portal.
SAML-based authentication must be configured and users provisioned. Note that you cannot use Zscaler App Portal as an IdP for the ZPA service.
To ensure the Zscaler App properly processes traffic for ZPA, ensure the following domains are in the SSL bypass list. If you use a PAC file for Zscaler App, you must add the URLs to the SSL bypass list in the PAC file as well.
Any domains used by your organisation's identity provider (IdP) (e.g.
System requirements
  • Windows System Requirements. Windows 7, 8, 8.1, or 10
  • Mac System Requirements. Mac OS X 10.10 and later
  • Android System Requirements. Varies by device
  • IOS System Requirements. iOS 8.0 or later

User support

User support
Email or online ticketing support Email or online ticketing
Support response times From 30 minutes (Priority 1) through to 8 hours (Priority 5)
User can manage status and priority of support tickets No
Phone support Yes
Phone support availability 24 hours, 7 days a week
Web chat support No
Onsite support Yes, at extra cost
Support levels For support issues with the application/platform, these are as follows and are inclusive:

Communication response (by contact method):
Email Response: 4 hours
Phone Response: 15 minutes

P1 Response: 2 hrs
P2 Response: 4 hrs
P3 Response: 12 hrs
P4 Response: 48 hrs

P1 Response: 30 min
P2 Response: 1 hr
P3 Response: 3 hrs
P4 Response: 4 hrs

P1 Response: 15 min
P2 Response: 30 min
P3 Response: 12 hrs
P4 Response: 4 hrs

We provide our incoming customer a full escalation matrix with 3 layers of management.
Support available to third parties Yes

Onboarding and offboarding

Onboarding and offboarding
Getting started We provide introductory training and documentation.

As a separate cost, Zscaler deployment Professional Services can be provided by Comtact's Zscaler Certified Cloud Professional (ZCCP) and Cloud Administrator (ZCCA) in-house team to deploy Zscaler in a fit-for-purpose configuration.
Service documentation Yes
Documentation formats HTML
End-of-contract data extraction Data export available for download (CSV or PDF formats).
End-of-contract process Access to the platform is revoked for all customer-approved users.

Using the service

Using the service
Web browser interface No
Application to install Yes
Compatible operating systems
  • Android
  • IOS
  • MacOS
  • Windows
  • Windows Phone
Designed for use on mobile devices Yes
Differences between the mobile and desktop service Access via Zscaler mobile application on iOS, Android and Windows devices.
Service interface Yes
Description of service interface Standard web interface, with a dashboard of key data with drill down capability.
Accessibility standards WCAG 2.1 A
Accessibility testing None.
Customisation available Yes
Description of customisation Customised dashboards.
Customised categories.
Customised monitoring.
Custom reports.


Independence of resources Zscaler has been design specifically for cloud use, with 100+ data centres worldwide.
Distributed, multi-tenant architecture, built from the ground up for elastic scale.
10 Gbps platform, based on a next-gen TCP stack and drivers as well as revolutionary Single Scan Multiple Action technology.


Service usage metrics Yes
Metrics types Detailed visibility into user transactions across devices, locations, applications and platforms.
Reporting types Real-time dashboards


Supplier type Reseller providing extra support
Organisation whose services are being resold Zscaler

Staff security

Staff security
Staff security clearance Conforms to BS7858:2012
Government security clearance Up to Security Clearance (SC)

Asset protection

Asset protection
Knowledge of data storage and processing locations Yes
Data storage and processing locations
  • United Kingdom
  • European Economic Area (EEA)
  • EU-US Privacy Shield agreement locations
  • Other locations
User control over data storage and processing locations No
Datacentre security standards Supplier-defined controls
Penetration testing frequency At least every 6 months
Penetration testing approach In-house
Protecting data at rest
  • Physical access control, complying with CSA CCM v3.0
  • Physical access control, complying with SSAE-16 / ISAE 3402
  • Scale, obfuscating techniques, or data storage sharding
Data sanitisation process Yes
Data sanitisation type Explicit overwriting of storage before reallocation
Equipment disposal approach Complying with a recognised standard, for example CSA CCM v.30, CAS (Sanitisation) or ISO/IEC 27001

Data importing and exporting

Data importing and exporting
Data export approach Data can be downloaded in CSV format.
Data export formats
  • CSV
  • Other
Other data export formats
  • PDF
  • Plain text JavaScript Object Notation (JSON)
Data import formats Other
Other data import formats Plain text JavaScript Object Notation (JSON)

Data-in-transit protection

Data-in-transit protection
Data protection between buyer and supplier networks
  • Private network or public sector network
  • TLS (version 1.2 or above)
  • IPsec or TLS VPN gateway
  • Legacy SSL and TLS (under version 1.2)
Data protection within supplier network
  • TLS (version 1.2 or above)
  • IPsec or TLS VPN gateway
  • Legacy SSL and TLS (under version 1.2)

Availability and resilience

Availability and resilience
Guaranteed availability Zscaler is ISO27001-certified and provides 99.999% availability SLA.
Approach to resilience 100+ data centres (Either ISO27001 or SSAE 16 certified).
Authorised personnel must pass through multiple levels of security and scanning to gain access.
All data centres are completely anonymous.
Outage reporting Public dashboard.

Identity and authentication

Identity and authentication
User authentication needed Yes
User authentication
  • Identity federation with existing provider (for example Google Apps)
  • Username or password
Access restrictions in management interfaces and support channels Role-based administration to control Admin roles.
Granular control access levels.
Access restriction testing frequency At least every 6 months
Management access authentication
  • Identity federation with existing provider (for example Google Apps)
  • Username or password
  • Other
Description of management access authentication Users will be authenticated via location or credentials (either hosted by Zscaler or logged in via an external SAML/LDAP IDP)

Audit information for users

Audit information for users
Access to user activity audit information Users have access to real-time audit information
How long user audit data is stored for Between 1 month and 6 months
Access to supplier activity audit information Users have access to real-time audit information
How long supplier audit data is stored for Between 1 month and 6 months
How long system logs are stored for Between 1 month and 6 months

Standards and certifications

Standards and certifications
ISO/IEC 27001 certification Yes
Who accredited the ISO/IEC 27001 BSI
ISO/IEC 27001 accreditation date 24/1/2013
What the ISO/IEC 27001 doesn’t cover N/A
ISO 28000:2007 certification No
CSA STAR certification No
PCI certification No
Other security certifications No

Security governance

Security governance
Named board-level person responsible for service security Yes
Security governance certified Yes
Security governance standards ISO/IEC 27001
Information security policies and processes ISO 27001-certified Information Security Management System (ISMS), based upon a robust framework of information security policies and procedures.

Operational security

Operational security
Configuration and change management standard Conforms to a recognised standard, for example CSA CCM v3.0 or SSAE-16 / ISAE 3402
Configuration and change management approach The scope of change management covers changes to service assets and configuration items across the whole service lifecycle.

All changes are recorded and then evaluated, authorised, prioritised, planned, tested, implemented, documented and reviewed in a controlled manner, with necessary corrective actions taken, inline with ITIL methodology.
Vulnerability management type Supplier-defined controls
Vulnerability management approach Potential threats are assessed through Penetration Testing.
Patches are deployed as soon as they are published by a vendor, during a maintenance window.
Information on threats supplied by vendors.
Protective monitoring type Supplier-defined controls
Protective monitoring approach Comtact has a fully managed Security Operations Centre (SOC), running a Security Information & Event Monitoring platform.

Response are automated when possible. Otherwise, these are logged as security incident and responded to accordingly, following our Security Incident Management process.

Response is immediate 24/7/365.
Incident management type Supplier-defined controls
Incident management approach Predefined processes for common events.
Incidents are either automatically alerted upon, or reported by users. Incident reports are provided on request.

Secure development

Secure development
Approach to secure software development best practice Supplier-defined process

Public sector networks

Public sector networks
Connection to public sector networks Yes
Connected networks NHS Network (N3)


Price £11.82 to £190.09 per user per year
Discount for educational organisations Yes
Free trial available No

Service documents

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