The server cannot read you
The post-quantum solution that makes your data unreadable, even if you are breached.
Without AKARUP, your files sit in the clear on a server. If that server is breached, everything is readable.
With AKARUP, your files are encrypted before they leave your machine. The server only receives unreadable blocks. Even breached, nothing is readable.
AKARUP is the natural anti-ransomware answer, with no change to your office and business software!
Ransomware encrypts your files to make them unreadable. With AKARUP, they already are — and your earlier versions are still there.
On your computer
You open, edit and rename your files as usual, just like in any other folder — Word, Excel, the file explorer. Nothing changes for you.
Encryption boundary
Encryption, on your machine
Before it is sent, every file is locked with a key that exists only on your device.
On the server
It only receives opaque blocks, all identical in appearance:
a3f9…0c17 · e21b…88fa · 5d0e…f341 · 9c2a…77b0
$ akarup drive push compta-2026.zip
✓ chiffré · déposé · sha256 a3f1…9c
Post-quantum encryption
Communications are protected by NIST-standardized algorithms: ML-KEM-768 (FIPS 203) and ML-DSA-65 (FIPS 204).
Resilient against attacks
No version is ever overwritten, only added: even after a ransomware attack, you recover your data by simply rolling back, with no external backup.
Guaranteed integrity
Every write is digitally signed: any tampering or forgery of a file is detectable.
For CIOs and CISOs
Built to pass a security review
Blind Relay architecture
The server only transports and stores encrypted envelopes, presented in a unified format with no readable business content. Compromising it does not, by itself, allow reading your messages, files, and notes.
Shared workstations under control
Several accounts, strictly cryptographically isolated on the same terminal — at the counter, in the practice, on the shop floor.
Keys and recovery under control
Keys stay with your users. Recovery relies on a mnemonic phrase — no backdoor, not even for us.
AKARUP server — blind relay
Your devices and servers
Encrypted envelopes, in a unified format, no readable business content
Recipients
Wherever they are, your servers know nothing
Your files are encrypted before they leave your machine. The server only receives unreadable blocks — whether it sits in Paris, Lagos, Mumbai or inside your own walls.
Elsewhere, confidentiality is a promise: your provider could read your data, and commits not to. You trust them, for lack of an alternative. Here, there is nothing to promise. We cannot read your data, even if we wanted to, even if we were ordered to.
That is your independence: no provider to entrust your secrets to, no foreign jurisdiction to endure, no trade-off between security and where you deploy. Your data falls under your own law, and no other. Deploy wherever your rules require.
Published by AKARE SARL, Paris
A complete workspace
Messaging, files, notes, media, and automations — available today on iOS and Android.
Encrypted messaging
One-to-one conversations, end-to-end encrypted, on all your devices.
Groups
Group conversations with the same cryptographic protection as one-to-one exchanges.
Multi-device Drive
Your encrypted files, synchronized across your devices: create, open, rename, move, delete — everywhere.
Video calls
Video meetings protected by end-to-end post-quantum cryptography.
Photos and media
Send and store photos and documents, encrypted like everything else.
Automations
Write code, reference your Drive files, run it in a sandbox on your device, and get a result along with its fingerprint.
Verifiable cryptography, not promises
Public, standardized, auditable primitives. Every claim on this page corresponds to shipped code.
Let's talk about your IT system
Deployment, integration, regulatory requirements: let's talk directly with your teams.
ML-KEM-768 · ML-DSA-65 · XChaCha20-Poly1305 · Argon2id