Armour Mobile is a secure mobile communications platform designed for organisations in the Defence sector and other high-security environments. It enables encrypted messaging, voice calls, and collaboration on standard iOS, Android, and Windows 10 devices. The platform is approved for use up to OFFICIAL SENSITIVE and NATO Restricted classification levels, making it a compliant alternative to consumer messaging applications such as WhatsApp. It is designed to protect communications across supply chains and distributed teams, including remote workers. Armour Mobile offers several deployment configurations: - **Armour Collaborative Environment (ACE)**: An independent managed communications service for defence contractors working collaboratively on bids, projects, and research at OFFICIAL SENSITIVE level. - **Armour Mobile Cloud**: A cloud-hosted variant that supports secure conference calls and integrates with existing unified communications infrastructure. - **Armour Black**: A higher-assurance, tailored solution for government and covert community users, offering full control over device provisioning, key management, and licence revocation. The platform encrypts data both in-transit and at rest, addressing GDPR requirements for personally identifiable information. It also preserves communications subject to Freedom of Information (FOI) requests, supporting public accountability. IoT device data transmission can also be encrypted via the platform, protecting hidden data streams connected to servers.