Quantum-Secure Communication Platform. Built for the Threats That Are Already Here.

A harvest-now-decrypt-later (HNDL) attack is when a threat actor intercepts and stores encrypted communications today, with the intention of decrypting them once quantum computing becomes powerful enough to break classical encryption. The attack is already active. State-sponsored actors are building archives of encrypted data right now. Any communication protected only by RSA or ECC encryption that is intercepted today becomes a future liability — regardless of how secure it appears at the time of sending.

Post-quantum cryptography (PQC) refers to cryptographic algorithms designed to resist attacks from quantum computers. Unlike classical encryption algorithms such as RSA and ECC, which are vulnerable to Shor's algorithm, post-quantum algorithms are based on mathematical problems that quantum computers cannot efficiently solve. NIST finalized the first set of post-quantum cryptographic standards in 2024. For organizations handling data with a shelf life beyond three years — including governments, defense, financial institutions, and healthcare — migration to post-quantum cryptography is already a current requirement, not a future consideration.

Most encrypted messaging apps protect data in transit but terminate or compromise encryption at the server level, during routing, or during device synchronization. RealTyme maintains end-to-end encryption across the entire communication lifecycle — messages, files, voice calls, group calls, and device sync — with no plaintext exposure at any point. Additionally, RealTyme layers NIST-approved post-quantum algorithms on top of classical encryption simultaneously, meaning both layers must be broken independently to access any data. Standard apps offer neither client-side key sovereignty nor quantum-resistant cryptography.

End-to-end encryption ensures that data is encrypted on the sender's device and can only be decrypted on the recipient's device. No intermediary — including the service provider, network operators, or server infrastructure — can access the content in readable form. With RealTyme, this protection covers not only messages but also file transfers, voice and group calls, and device synchronization. Conversation history never exists in plaintext outside of the user's own devices.

Zero Trust is a security framework that operates on the principle that no user, device, or connection should be trusted by default — even within a known network. Access is never assumed and must be continuously verified. RealTyme implements Zero Trust through a deployment-specific Public Key Infrastructure (PKI), mutual authentication for every connection and action, real-time device certificate monitoring, and immediate remote wipe capability for compromised devices. A stolen password or compromised device does not grant access — every sensitive action requires all parties to verify each other in real time.

In 2024, the National Institute of Standards and Technology (NIST) finalized the first set of post-quantum cryptographic standards following a multi-year evaluation process. The primary standards include ML-KEM (based on Kyber) for key encapsulation and ML-DSA (based on Dilithium) for digital signatures. These algorithms are based on lattice-based cryptography, which is resistant to attacks from both classical and quantum computers. RealTyme has integrated both ML-KEM-1024 and ML-DSA-87 into its cryptographic architecture in a hybrid model alongside classical encryption.

Client-side key sovereignty means that the cryptographic keys used to encrypt and decrypt your communications are generated, stored, and controlled exclusively on your own devices or infrastructure — never on the service provider's servers. In standard cloud communication models, the provider manages the encryption keys, which means they can grant access to your data to third parties, government entities, or internal administrators without your knowledge. With RealTyme, the provider never holds your keys. You own the lock and the key. This is the foundational difference between genuine privacy and security theater.

Yes. RealTyme supports on-premises deployment, sovereign cloud, and Swiss cloud hosting options, giving organizations full control over where their data physically resides and which legal jurisdiction governs it. This is particularly relevant for organizations subject to regulations such as NIS2, DORA, GDPR, or national data sovereignty laws. By deploying RealTyme within a chosen jurisdiction, organizations bypass cross-border data access frameworks such as the US Cloud Act, ensuring that communications remain subject only to the laws of their chosen operating environment.