End-to-End Encrypted

Your messages.
Your keys.
Your privacy.

Not even we can read your messages. No phone number required. No tracking. Just pure, encrypted communication that syncs across all your devices.

AES-256 Encryption
0 Data collected
100% Open protocol
The uncomfortable truth

Your "private" messages
aren't private.

They read your messages to sell ads

The world's biggest messaging apps scan your conversations, contacts, and behavior to build advertising profiles. You're not the user — you're the product being sold to advertisers.

Your phone number IS your identity

Most "encrypted" apps still require your phone number — linking your real identity to every message, every group, every call. Governments and corporations can trace you with a single number.

"Encrypted" with a master key

Some platforms claim encryption but keep a backdoor. Unencrypted backups, metadata logging, cloud copies they can access. If the company can read it, so can anyone who compromises them.

Billions of people trust their most intimate conversations to platforms that profit from reading them. We built PoSec because that's insane.

Built different.

Every feature designed with one principle: you own your data.

Signal Protocol

X3DH key exchange + Double Ratchet. The same encryption used by Signal, but without requiring your phone number.

Zero Knowledge

Server stores encrypted blobs only. We can't read your messages, see your contacts, or access your keys. Ever.

Cloud Sync

Your encrypted messages sync across all devices. Only your keys can decrypt them. Lose a device? Your data stays safe.

Key-Pair Identity

No phone number. No email. Your cryptographic key pair IS your identity. Truly anonymous, truly yours.

Groups & Channels

E2E encrypted group chats with Sender Key protocol. Broadcast channels for communities. All encrypted.

Voice & Video Calls

WhatsApp-style calls — peer-to-peer encrypted, group video with screen sharing. No middleman server touches your audio.

Voice Spaces

Twitter Spaces-style live audio rooms scoped to your area. Host, listen, raise hand to speak. Location-based, real-time.

Hangout & Arena

Live radar shows nearby people by distance. Anonymous debates, salary threads, predictions. From your street to the world.

Stakes — Prediction Markets

Bet on anything with ETH. Parimutuel pools, 2% fee on profit only, full transparency. Polymarket meets privacy.

ETH Crypto Wallet

Built-in Ethereum wallet. Deposit, withdraw, and trade with native ETH. AES-256-GCM encrypted keys — never leave your device.

From your street to the world.

PoSec isn't just chat. It's encrypted social — local to global.

How it works

From signup to encrypted conversation in under 30 seconds.

1

Create your identity

Pick a username. Your device generates a unique cryptographic key pair. No phone number, no email, no tracking.

2

Save your recovery phrase

12 words that unlock your identity on any device. Write them down. This is your master key — we never see it.

3

Start messaging

Every message is encrypted before it leaves your device. The server only sees encrypted blobs. Not even we can read them.

PoSec vs Everyone Else

PoSec WhatsApp Telegram Signal
E2E Encrypted Yes Yes Opt-in only Yes
No phone required Yes No No No
Zero data collection Yes No No Minimal
Cloud sync Yes Yes Yes No
Key-pair identity Yes No No No
Open encryption Yes No Partial Yes
Voice & video calls Yes Yes Yes Yes
Voice Spaces (live audio) Yes No No No
Hyperlocal radar Yes No Nearby No
Anonymous forums Yes No No No
Prediction markets Yes (ETH) No No No
Built-in crypto wallet Yes (ETH) No No No

Ready to take back your privacy?

Join PoSec. Your messages stay yours.