HushHush is a local encryption engine that secures text messages before they are sent through third-party platforms like WhatsApp, Slack, or SMS. The app processes all encryption entirely on-device, with no accounts, no tracking, and verifiable cryptography. It supports QR-code-based contact setup, optional post-quantum protection, and manual or automated message delivery.
Funding
Funding not disclosed
Founders
Product
Problem
Messaging platforms remain vulnerable to legal requests, server breaches, and account hijacking, which can expose private conversations, metadata, and encryption keys. Even when content is encrypted, metadata such as who talks to whom and how often reveals intimate details about users' lives. Centralized services also create high-value targets for sophisticated attackers.
Solution
HushHush is a local encryption engine that secures text before it is sent through third-party channels like WhatsApp, Slack, or SMS. All encryption and decryption happen entirely on-device, ensuring that plaintext never touches external servers and that no metadata is tracked. Users establish encrypted channels by scanning QR codes in person, with an optional Ultra Secure mode that adds post-quantum protection through a two-way in-person exchange. Messages can be delivered automatically via automation channels like Telegram or Matrix, or manually by copying and pasting ciphertext into any app. The platform is designed to be verifiable, with open cryptography and zero ads or trackers, giving users full control over their communication security.
Target Audience
Primary users are privacy-conscious individuals, journalists, and professionals who handle sensitive information and need a simple way to secure messages sent through existing communication platforms.
Features
- 100% local processing with no cloud storage, accounts, or server-side encryption keys
- Verifiable cryptography that users can audit independently
- QR-code-based contact setup for in-person encrypted channel establishment
- Ultra Secure mode with post-quantum protection requiring a two-way in-person key exchange
- Automation channel support for Telegram, Matrix, and email (coming soon) for hands-free message delivery
- Manual paste-and-unlock workflow for use with any messaging app
- Zero ads, zero trackers, and no metadata collection