Indian Air Force
Air-gapped deployment, Udaan Messenger
Secure military communication system for defence.
Troop Messenger is a secure military communication system for armed forces, ministries of defence, intelligence agencies and the defence industry. Messaging, calls and file sharing run end-to-end encrypted on your own servers or a fully air-gapped network, so no outside party can reach them.
- Air-Gapped
- On-Premise
- Sovereign Cloud
Defence and Space Organisations That Cannot Put Their Communications on Someone Else’s Cloud
UK Hydrographic Office, Ministry of Defence
National hydrographic and defence data
European Space Agency
Intergovernmental space programme
Airbus Defence and Space
Defence and aerospace manufacturing
- GMV
- Taural India
- Transgrid
Indian Air Force: air-gapped deployment, white-labelled as Udaan Messenger, [5,000+ users]. Read the case study
[Confirm permission for every name]
What Is a Secure Military Communication System?
A secure military communication system is messaging, calling and file-sharing software that armed forces and defence organisations run on networks they control, including air-gapped networks, so no outside party can access their communications.
Unlike consumer apps, it is owned and administered by the organisation itself: accounts, data, encryption keys and audit logs never leave its infrastructure, and access follows the chain of command. Troop Messenger provides this for headquarters, bases, ships and field units, and for the defence industry that supplies them.
| Deployment | On-premise, sovereign or private cloud, fully air-gapped (Troop-GRIT) |
|---|---|
| Encryption | End-to-end: ECDH SECP384R1, PBKDF2, AES-256; post-quantum VPN option |
| Identity | LDAP, SAML, Multi-Factor Authentication |
| Networks | LAN, intranet, satellite and DDIL links |
| Platforms | Windows, macOS, Linux, Android, iOS, web |
| Oversight | Audit logs, lawful interception (TM-Monitor), role-based access |
| In use at | Indian Air Force, UK MoD (UKHO), ESA, Airbus Defence and Space |
The shadow-IT risk
Why Consumer Messaging Apps Fail Defence Requirements
Consumer apps were built for friends, not for operations. Personnel using them for official work put locations, contacts and documents outside your control.
| Requirement | Consumer messaging app | Troop Messenger |
|---|---|---|
| Who owns the account | The individual, tied to a personal number | Your organisation, provisioned from your directory |
| Where data and metadata live | The provider’s servers, under its home country’s law | Your servers, inside your borders |
| Works with no internet | No | Yes, fully air-gapped |
| Chain of command | Anyone can message anyone | Units, ranks and approval before contacting senior officers |
| Audit and lawful interception | None available to you | Exportable logs and TM-Monitor |
| When someone is posted out | Chats and files leave with them | Access revoked instantly; data stays with you |
| Lost or stolen device | No remote control | Remote wipe |
Same platform. Different environments. Complete control.
Secure Messaging for Every Branch of Defence
Different missions.Same platform.Your data stays yours.
One platform from headquarters to hangar to ship. Deployment and access rules change by branch; the product does not.
01
Land forces
Army
Formation, unit and field-detachment messaging over satellite and low-bandwidth links.
Army chat app02
Sea and shipborne
Navy
Intra-ship, ship-to-ship and ship-to-shore communication on narrow satellite links.
Navy messaging application03
Air bases and squadrons
Air Force
Mission-critical messaging on air-gapped Air Force intranets.
Air force messaging app05
Policy and coordination
Ministry of Defence
One secure channel for ministry departments and service headquarters, with full audit.
Secure messaging for ministries of defence06
Agencies and analysts
Intelligence
Compartmented, air-gapped communication with strict need-to-know access.
Secure communication for intelligence agencies07
Border and internal security
Paramilitary and law enforcement
Secure field and headquarters communication for paramilitary and police forces.
Paramilitary and law enforcement08
Industry and supply chain
Defence manufacturers
Keep programme and technical data on your servers while working with suppliers.
Secure messaging for defence manufacturers04
Maritime security
Coast Guard
Shore stations and vessels on one secure network, including over satellite.
[Coast guard page to create]Three Ways to Deploy.Every One Stays Inside Your Perimeter.
Deployment model
On-Premise
Runs on
Your servers, behind your firewall
Built for
Ministries, headquarters and defence manufacturers
Data leaving your perimeter
Never
Deployment model
Air-Gapped: Troop-GRIT
Runs on
A fully isolated network with no internet path
Built for
Armed forces, intelligence and classified networks
Data leaving your perimeter
Never
Deployment model
Sovereign or Private Cloud
Runs on
Your own government or national cloud tenancy
Built for
Organisations that already run sovereign cloud
Data leaving your perimeter
Never
Same platform. Different environments. Complete control.
How to Evaluate a Defence Messaging Platform
Eight criteria procurement and security teams use to compare secure military communication systems.
Data ownership and sovereignty
Data, logs and keys stay on your infrastructure, inside your borders.
How we keep data in-countryDeployment flexibility
On-premise, sovereign cloud and air-gapped, with no feature loss.
See deployment modelsEncryption standards
Named algorithms and key sizes, plus post-quantum readiness.
See encryptionAccess and identity controls
LDAP, Active Directory, SSO, MFA and role-based access.
See access controlsNetwork resilience
Proven performance on satellite and DDIL links.
See air-gapped and DDILHigh availability and scale
Clustering, failover and a contractual uptime SLA.
See high availabilityAuditability and oversight
Exportable logs and lawful interception under your policies.
See oversightIntegration
Secure APIs into C2, logistics, maintenance and SIEM.
See integrationsMilitary-Grade Encryptionand Security Controls
Military-grade encryption should mean named algorithms and key sizes. Troop Messenger uses ECDH on the SECP384R1 curve, PBKDF2 and AES-256.
End-to-End Encryption
Every message, call and file is encrypted end-to-end.
On-Premise & Air-GappedPost-Quantum Cryptography VPN
A PQC-secured tunnel established before any data exchange begins.
On-PremiseBurnout Self-Destructing Chat
A private window that leaves no trace once closed.
All deploymentsMulti-Factor Authentication
Password, app PIN and biometrics, enforced from the admin console.
All deploymentsLDAP / Active Directory & SSO
One source of truth for access, roles and deprovisioning.
All deploymentsRole-Based Access Control
Feature-level permissions for chat, calls, files, screen share and apps.
All deploymentsUnits
Mirror formations, bases, ships and departments so people see the right groups from day one.
All deploymentsUser Authorisations
Junior personnel request access to senior officers with a justification; leaders approve for a set period.
All deploymentsOrange Member
Controlled guest access for contractors, integrators and allies, to named groups only.
All deploymentsInstant Revocation
Remove users and devices from one console the moment someone is posted out.
All deploymentsScreenshot & Recording Controls
Enforced by the administrator, not left to the user.
All deploymentsAudit Logs
Complete activity logs, timestamped and exportable.
On-Premise & Air-GappedLawful Interception (TM-Monitor)
Authorised review of official communication under your own policies.
On-Premise & Air-GappedDefence Licensing and Pricing
Licensed per user. Air-gapped and national programmes are quoted per programme, with source code escrow for large deployments.
Talk to OurDefence Team
Choose a security briefing, a pilot on your own network, or a programme quote. Verified defence and government enquiries receive a reply within two business days.
Security briefing
45 minutes with our solutions architect.
Pilot on your network
The complete product on your server or isolated test network.
Programme quote
A formal proposal for your users, sites and deployment.
GET IN TOUCH
Talk to our deployment team
Tell us about your requirements and we'll get back to you shortly.
Case Study:Indian Air Force
An air force on its own messaging platform, under its own name.
The challenge
No consumer apps, no outside infrastructure
Secure messaging and calling for personnel that runs entirely on the Air Force’s own network.
The deployment
Air-gapped, white-labelled as Udaan Messenger
Deployed on the Air Force intranet with a dual-identity e-governance model and an Approvals and Discussions module.
The outcome
[5,000+ users]
[Add one measurable outcome agreed with the customer]
[Confirm permission to publish the customer name and Udaan Messenger]
Integrations
Integrates With YourDefence Systems
Secure REST APIs and webhooks run inside your own network, so your systems post alerts, approvals and updates into the right channels without opening a door to the internet.
- 1
Command and control
C2, mission planning and situational awareness alerts.
- 2
Logistics and maintenance
Supply, inventory, fleet and platform management.
- 3
Security operations
SOC, SIEM and cyber defence alerts to the duty team.
- 4
Documents and custom systems
Repositories, e-Office and indigenous applications.
High availability
Mission-criticalUptime
[99.9%] uptime SLA with clustered deployment.
Scale
[100K+]concurrent users with horizontal scaling.
Recovery
DR-ready, with scheduled backups and rapid restoration.
Dedicated deployment support and a custom SLA included.
Data Sovereigntyfor National Defence
Sovereign hosting
Your data centre or national cloud. No foreign cloud dependency.
Data residency
Messages, files, keys and logs are stored and processed inside national borders.
Regulatory alignment
Supports GDPR and national data-protection obligations, with audit logs and lawful interception.
Chain of custody
Full ownership of communications from creation to archive.
The same model serves civil departments: Government messaging
FAQ
Frequently Asked Questions
Yes. Troop Messenger supports on-premise deployment and can be configured for isolated network environments, subject to the deployment architecture and operational requirements.
Troop Messenger uses encryption to protect communications, including end-to-end encryption for messages. The platform uses cryptographic mechanisms such as AES-256, ECDH and PBKDF2 in its security architecture.
It mirrors your chain of command. Units reflect formations, bases and ships; user authorisations stop junior personnel contacting senior officers without approval; broadcast sends one order to a whole formation; and administrators revoke users and devices instantly from one console.
Unlike consumer messaging apps, Troop Messenger is designed for organisational communication and collaboration. It offers centralised user management, administrative access controls and on-premise deployment options, giving organisations greater control over user access and data management. Administrators can manage accounts and revoke access when personnel change roles or leave the organisation.
Defence organisations can contact our team to arrange a technical briefing or Proof of Concept (POC). Fill out the contact form on this page to discuss your organisation's requirements and explore the next steps for evaluation.
Yes. Troop Messenger supports audio and video calls, along with screen sharing, to facilitate real-time collaboration.
Yes. Troop Messenger provides administrative controls for managing users and access to platform features. It also supports multi-factor authentication and directory integration options, including Active Directory and LDAP.
Troop Messenger is available on Windows, macOS, Linux, Android, iOS and web browsers, enabling personnel to communicate and collaborate across supported devices and platforms.
Yes. Troop Messenger can be configured and extended to meet specific defence requirements, subject to technical feasibility and project scope.
Ready to see it on your own network?
