Security

Last updated: July 8, 2026

Encryption Model

Secure Pair Transfer is built for encrypted communication between two paired clients. Chat messages and file payloads are encrypted by the clients before traveling through the relay.

The relay is intended to route encrypted traffic, manage pairing sessions, provide license checks, and distribute updates. It is not intended to decrypt private chat or file contents.

QuadCrypt is a local encrypted file vault. Locked vault data uses four required passwords and AES-256-GCM authenticated encryption layers, but the app has not completed an independent third-party audit.

What The Service Can Still See

No practical relay can be completely blind to everything. The service may process account, license, update, pairing, timing, connection, IP, device, file-size, and transfer-status metadata when needed to operate, secure, debug, and support the product.

Beta Security Limits

The Windows beta is not code-signed yet. Windows may show unknown publisher warnings until Khuna Labs finishes its code-signing path. Only install builds downloaded from this site or another official Khuna Labs source.

Do not treat beta software as your only copy of important files. Keep backups and test with files you can afford to resend.

QuadCrypt cannot recover a vault if required passwords, key files, or Windows user/PC profile binding are lost. Unlocked vault files are normal plaintext files until locked again.

Responsible Use

Khuna Labs tools are not permission to transfer, store, lock, unlock, or share anything unlawful or harmful. You are responsible for the files, messages, vault contents, and contacts you choose to use with the software.

Windows Cleanup Tool Safety

Khuna's Windows Cleanup Tool is a local administrator utility. It can remove apps, change Windows policies, disable services, change power settings, and delete old temp or shader-cache files. Read the risk labels before applying selected changes.