i2N Ltd

Cross Domain Security Zone

Cross Domain Security Zone enables consumers to securely transfer data between the UKCloud Assured OFFICIAL (formerly IL2) cloud platform and the UKCloud Elevated OFFICIAL (formerly IL3) cloud platform using NCSC approved cross domain security patterns.


  • Self-managed option supports complex and varied use-cases
  • UKCloud-managed option supports simple and inspectable traffic flows
  • Optimised for OFFICIAL - designed for OFFICIAL and OFFICIAL-SENSITIVE
  • Green; based in UK facilities which offer market leading efficiency
  • Create citizen facing services while maintain data security.
  • Leverages ready-made solutions to reduce infrastructure and compliance costs.
  • Ensure you are meeting the required levels of solution compliance
  • Cross-domain functionality: controlled access between internet and Elevated domains
  • Evolve the service it to meet new and emerging needs.
  • Centralized management and protective monitoring, real-time events correlation and alerting


  • Choose the solution that best fits your needs
  • Support complex use-cases such as code migrations and video transfer
  • Supports and enables the Government Digital Strategy
  • Meet your environmental targets
  • Provides a secure, flexible, method of transferring data between domains
  • The Guard option is delivered via a shared multi-tenant solution.
  • The Guard uses a standardised system architectures, reviewed by CESG
  • Cross Domain: Choose between ready-to-use managed Guard and Walled Garden


£500 to £1000 per unit per month

  • Education pricing available

Service documents

G-Cloud 9


i2N Ltd

Marco Fiorentino

01473 731230


Service scope

Service scope
Service constraints Planned maintenance windows are identified in the service description.

Emergency maintenance windows are identified in the service description.

Customers must complete an assurance activity prior to service provision.

Remote access to Elevated requires a dedicated SRAS client connecting to a Bastion zone.
System requirements
  • Modern browsers, supporting flash and allows downloading of JAVA applets
  • Remote Access machines, connecting to Elevated network for direct management

User support

User support
Email or online ticketing support Email or online ticketing
Support response times Tickets are responded to on a priority basis. We aim to respond to ALL initial questions within 15 minutes during normal business hours. Week end support is arranged on an ad-hoc basis. 24/7 support is available upon request.
User can manage status and priority of support tickets Yes
Online ticketing support accessibility WCAG 2.0 AA or EN 301 549
Phone support Yes
Phone support availability 9 to 5 (UK time), Monday to Friday
Web chat support Web chat
Web chat support availability 9 to 5 (UK time), Monday to Friday
Web chat support accessibility standard WCAG 2.0 AA or EN 301 549 9: Web
Web chat accessibility testing Our webchat support is done through a COTS product which is assistive technology compliant.
Onsite support Yes, at extra cost
Support levels I2N standard support includes an Account Managers, support engineers and a 24/7 Operations Centre. We aim to respond to all incidents within 15 minutes between 08:00-6:00 every weekday.
i2N also provides ad-hoc on-site consultancy, training and troubleshooting services.
Support available to third parties No

Onboarding and offboarding

Onboarding and offboarding
Getting started All new customers are assigned a Customer Success Manager that will provide proactive support and advice for the first 90 days. Onboarding is supported by our Cloud Architects and DevOps who ensure the right solution is provisioned and maximised for the workloads, along with a range of user guides.
Service documentation Yes
Documentation formats
  • ODF
  • PDF
  • Other
Other documentation formats Video and podcasts
End-of-contract data extraction The customer must request a data extraction from i2N due to the OFFICIAL (Elevated) nature of the environment. Agreements must be in place to provide secure transport devices and handling. Data can be extracted either from within the VM (for example copying specific files/folders) or the entire VM (for example, exporting as a VMDK or OVF). If object storage is used, the customer may export their data to a different platform subject to compliance data transfer limitations.
End-of-contract process Customer data is extracted and returned to the customer through a secure medium and all virtual machines and network configurations are decommissioned and erased to CESG approved standards. Any used compute resources (CPU, RAM, Disk) are returned to the pool of available resources.

Using the service

Using the service
Web browser interface Yes
Using the web interface The CDS zone tightly restrict provisioning and de-provisioning of Virtual Machines as it is a specifically accredited environment. However we can provide a control panel allowing users to provision, manage (power up, down, reset) and decommission various aspects of this service. Depending on the service level and permissions, the web interface also provides access to a comprehensive set of documentation and videos. Launch, manage and delete virtual network, compute and storage resources. Display network topology. Manage images including creation and recover of backups.
Web interface accessibility standard None or don’t know
How the web interface is accessible The web interface is accessible using the most common web browsers and is delivered over various private networks including PSN, N3/HSCN and Janet. The web interface is protected by standards-based encryption, two-factor authentication and optionally IP address restrictions. The web interface is entirely HTML5 and does not require any auxiliary plug-ins, therefore the web interface is accessible by any modern day desktop or mobile internet browser able to support secure HTTPS connections. When remote accessing a Virtual Machine, a new web page window will open giving access to the console. Multiple windows can be opened simultaneously.
Web interface accessibility testing The cloud providers have done such testing. The operating systems running inside the virtual machine may implement such features (Windows)
Command line interface No


Scaling available Yes
Scaling type Manual
Independence of resources Virtual Machines are provisioned per customer and not shared. A virtual machine running out of resources cannot affect another since they are fenced by the cloud software. Scalability relies on the underlying Cloud infrastructure which provide horizontal and vertical on-demand and real-time scaling to us.
Usage notifications Yes
Usage reporting
  • Email
  • Other


Infrastructure or application metrics Yes
Metrics types
  • CPU
  • Disk
  • HTTP request and response status
  • Memory
  • Network
  • Number of active instances
Reporting types
  • Real-time dashboards
  • Regular reports


Supplier type Reseller providing extra features and support
Organisation whose services are being resold UKCloud

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
User control over data storage and processing locations Yes
Datacentre security standards Complies with a recognised standard (for example CSA CCM version 3.0)
Penetration testing frequency At least once a year
Penetration testing approach ‘IT Health Check’ performed by a CHECK service provider
Protecting data at rest
  • Physical access control, complying with CSA CCM v3.0
  • Physical access control, complying with SSAE-16 / ISAE 3402
  • Encryption of all physical media
  • Other
Other data at rest protection approach Data at rest is protected according to the solution selected by the customer and the cloud provider capabilities. All cloud providers support as a minimum AES-256 encryption of data. i2N encourage its customers to protect their own data using encryption technologies where they are the sole decryption key owners. In this way, our customers are assured that their data can never be accessed by a third party.
i2N own data is encrypted when the service requires it.
Data sanitisation process Yes
Data sanitisation type
  • Explicit overwriting of storage before reallocation
  • Deleted data can’t be directly accessed
Equipment disposal approach Complying with a recognised standard, for example CSA CCM v.30, CAS (Sanitisation) or ISO/IEC 27001

Backup and recovery

Backup and recovery
Backup and recovery Yes
What’s backed up
  • Entire virtual machines and data through crash consistent cloud snapshots
  • Single or multiple disk/volume
  • Consistent file and application back up for third party tools
Backup controls Integrated cloud backup (snapshots): Users check backups through a web interface from the cloud provider.

Integrated cloud backup (snapshots): Users contact the support i2N team to get backups reports.

Third party backup solution: Users control backups through their own vendor's interface.
Datacentre setup
  • Multiple datacentres with disaster recovery
  • Multiple datacentres
  • Single datacentre with multiple copies
  • Single datacentre
Scheduling backups Supplier controls the whole backup schedule
Backup recovery
  • Users can recover backups themselves, for example through a web interface
  • Users contact the support team

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
  • Other
Other protection between networks Deep inspection of protocols (Palo Alto IPS)

Furthermore, i2N controls the logical networks that are created atop the physical cloud provider infrastrcuture. We use defence in depth approach, we logically segment networks where possible, configure several firewall layers, IPSs, deep packet inspection and real time security event correlation monitoring.
Data protection within supplier network
  • TLS (version 1.2 or above)
  • IPsec or TLS VPN gateway
  • Legacy SSL and TLS (under version 1.2)
  • Other
Other protection within supplier network Palo Alto Firewalls, Segmentation and Ring fenced virtual applications.

Furthermore, i2N controls the logical networks that are created atop the physical cloud provider infrastrcuture. We use defence in depth approach, we logically segment networks where possible, configure several firewall layers, IPSs, deep packet inspection and real time security event correlation monitoring.

Availability and resilience

Availability and resilience
Guaranteed availability I2N Guarantees high levels of availability by hand picking cloud providers which promise outstanding uptimes and high levels of accountability in their work. The minimum uptime requirement that we consider acceptable from our cloud provider is 99.9%. Several UKCloud services meet 99.99% targets. We strive to ensure that on the rare occasion that downtime does occur that the root cause of the problem is identify to prevent future occurrences. Our commitment to above and beyond levels of availability help us to ensure the highest levels of end user availability.
Approach to resilience Our service relies on UKCloud capabilities which are deployed across a number of zones (local replication), sites (datacenter replication) and regions (geo replication) offering various levels of resilience. Each zone is designed to eliminate single points of failure (such as power, network and hardware). By default, a standard service would allocate a VM in a single datacenter. The customer must then decide whether their solution requires further resilience and purchase the corresponding service level from i2N. Load balancing and autofailover are available. Customers are encouraged to ensure their solution spans multiple sites, regions or zones to ensure service continuity should a failure occur.
Outage reporting Outages are identified as Planned maintenance, Emergency maintenance, and platform issues.  The designated Technical Account Manager will proactively contact customers as appropriate. The account manager will be provided with portal access with a view on past, ongoing and planned outages.

Identity and authentication

Identity and authentication
User authentication
  • 2-factor authentication
  • Public key authentication (including by TLS client certificate)
  • Limited access network (for example PSN)
  • Dedicated link (for example VPN)
  • Username or password
  • Other
Other user authentication For online systems (e.g. Customer Portal, remote console), all cloud providers require users to have a unique username, password and memorable word combination. Customers may also use 2FA authentication tokens.
Access restrictions in management interfaces and support channels Permissions are set for each user limiting access to the management interfaces to only what they need to use the service.
For status updates, web chat, and ticketing, account managers and selected users are provided with a specific access for each service.
Access restriction testing frequency At least once a year
Management access authentication
  • 2-factor authentication
  • Public key authentication (including by TLS client certificate)
  • Limited access network (for example PSN)
  • Username or password
Devices users manage the service through
  • Dedicated device on a segregated network (providers own provision)
  • Dedicated device on a government network (for example PSN)
  • Dedicated device over multiple services or networks
  • Any device but through a bastion host (a bastion host is a server that provides access to a private network from an external network such as the internet)

Audit information for users

Audit information for users
Access to user activity audit information Users contact the support team to get audit information
How long user audit data is stored for User-defined
Access to supplier activity audit information Users contact the support team to get audit information
How long supplier audit data is stored for User-defined
How long system logs are stored for User-defined

Standards and certifications

Standards and certifications
ISO/IEC 27001 certification Yes
Who accredited the ISO/IEC 27001 Bureau Veritas UK
ISO/IEC 27001 accreditation date 22/01/2013
What the ISO/IEC 27001 doesn’t cover The scope of the Information Security Policy includes the entire company. Specifics are: all identified company assets, based in Suffolk office, the corporate communications infrastructure that supports all company business areas and functions. All staff -all employees and all Associates contracted to i2N at any time.​ All company assets are listed within the i2N Configuration Management database are considered to be within the scope of the information security policy. All company assets are included in scope of ISO27001 accreditation apart from 2 Meeting rooms located in Unit 1A, Copdock.
ISO 28000:2007 certification No
CSA STAR certification No
PCI certification No
Other security accreditations Yes
Any other security accreditations
  • Cyber Essentials Certificate of Compliance
  • I2N PSN Connection Compliance Certificate
  • Formerly MoJ-CESG PGA i2N dev, test and AGN network

Security governance

Security governance
Named board-level person responsible for service security Yes
Security governance accreditation Yes
Security governance standards ISO/IEC 27001
Information security policies and processes I2N has a number of inter-connected governance frameworks in place which control how the company operates and provides its services to customers. The most relevant of these is certification to ISO/IEC27001:2013, the international standard for Information Security Management Systems. Various policies refer to: SPG016P-Acceptable use of i2N resources & assets; SIM009P – User account security instructions and password management; SIM033P-User access control instructions; SPG017P-Physical security procedures; SPG018P-Data handling procedures; SPG019P-Data access procedures; SPG020P Network access procedures; SPG022P-Change management; SPG026P-Incident management; SPG027D- Business and service continuity; SPG032P-Backup procedures; SIM011P – i2N Network Administrator SyOps; SIM039N – i2N Infrastructure Group Policies; SIM020N – Log Monitoring Guide; SPG023P Internal IS Audit Procedures; SPG029P Document Management Procedure; SPG030P Compliance Checking Procedures; SPG036P Software Patching Procedures; SPG037P Hardware Lifecycle Management; SPG038P Software Lifecycle Management; SPG042P Software Development - Testing; SPG045P Agile Software Development Policy; SPG046P Secure Services Engineering; SIM003P Illegal Working checklist; SIM034P Staff Recruitment Checklist; SIM041P Infrastructure Outage Instructions; SIM043P Acceptance into Service Checklist There are several other Technical server builds, client builds, vulnerability management, firewall controls baselined documents. All policies are covered by i2N review procedure. Policies for critical assets are reviewed six monthly and other are reviewed at least annually.

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 I2N fully tracks the status, location and configuration of service components throughout their lifetime to industry best practice. Security considerations are mandatory prior to its submission for review by the Change Advisory Board, including: User service(s), team or location impacted Risk and impact assessed. Identification of the applicable assets involved in the proposed change. Planning change testing activities and regression plans in the event of change being unsuccessful. Assignment of appropriately qualified resources, in-line with change impact assessment tasks. Changes are only permitted where the above criteria are met, and any potential security issues are identified and properly prepared for.
Vulnerability management type Conforms to a recognised standard, for example CSA CCM v3.0 or SSAE-16 / ISAE 3402
Vulnerability management approach I2N has a process to identify threats and vulnerabilities which could have impact on the loss of the confidentiality, integrity or availability of data assets. Information with regard to technical vulnerability is sought from various sources. These include; Regular independent ITHC check, Nessus vulnerability scans, Microsoft provided windows alerts are monitored and evaluated and windows system update service. i2N technical services team prioritise the mitigation of vulnerabilities based on its severity. Evidence of vulnerability management is independent validated by ISO 27001 auditors and status of the action taken against vulnerabilities is periodically assessed as part of the ITHC checks.
Protective monitoring type Conforms to a recognised standard, for example CSA CCM v3.0 or SSAE-16 / ISAE 3402
Protective monitoring approach I2N G-cloud services are protected by the “GPG-13” Compliance for UK-based Government Agencies both at an infrastructure and an application level. This standard, monitors and alerts on twelve core control areas documented within GPG13. This standard includes the production and retention of user activity as well as machine specific data. This allows i2N G-cloud services, to support, active monitoring, incident identification and active response and investigative activities. Evidence of an effective protective monitoring service has been validated, assessed, and certified, multiple times by the MOJ Accreditors.
Incident management type Conforms to a recognised standard, for example, CSA CCM v3.0 or ISO/IEC 27035:2011 or SSAE-16 / ISAE 3402
Incident management approach I2N has formal policies and procedures for incident management activities to identify, remediate & resolve security incidents. i2N’s service desk is ISO27001 accredited and all staff are SC cleared. i2N provides ITIL compliant support for service desk tickets. The Incident Management Process are published within the on-line Customer Portal all provide clear information to customers on what a security incident is and how it should be reported to the Service Desk. The Service Desk will provide a triage service for all calls and route them to i2N Application/Infrastructure Support, or third party Service Desks for incident analysis and resolution.

Secure development

Secure development
Approach to secure software development best practice Independent review of processes (for example CESG CPA Build Standard, ISO/IEC 27034, ISO/IEC 27001 or CSA CCM v3.0)

Separation between users

Separation between users
Virtualisation technology used to keep applications and users sharing the same infrastructure apart Yes
Who implements virtualisation Third-party
Third-party virtualisation provider UKCloud
How shared infrastructure is kept separate At the compute/storage layer, consumers are separated via robust hypervisor controls based on the cloud technologies employed (VMware vSphere). VMware based solution validated by the NCSC PGA. It provides Network controls, allow VLAN type of traffic separation and segregation. The dedicated host option further enhance the data separation.

Energy efficiency

Energy efficiency
Energy-efficient datacentres Yes


Price £500 to £1000 per unit per month
Discount for educational organisations Yes
Free trial available No


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