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SecurityJanuary 12, 2026

Encryption by Default, Not by Option

Most communication platforms treat encryption as an afterthought — a toggle buried in settings, or worse, a paid feature reserved for enterprise plans.

At Athion, encryption is the foundation, not the finish.

How Flux encryption works

Every voice call and text message in Flux uses end-to-end encryption:

  1. Key exchange: ECDH with P-256 curve. Each participant generates an ephemeral key pair when joining a room.
  2. Symmetric encryption: AES-256-GCM for all media and message data.
  3. Perfect forward secrecy: Keys are rotated per-session. Compromising one session's keys reveals nothing about past or future sessions.

What we can't see

Because encryption happens on-device before data reaches our servers, we have no access to:

  • Voice audio content
  • Text message content
  • File attachment content
  • Screen share video streams

Our servers route encrypted packets. We see metadata (who's connected to which room, connection timestamps) but never content.

Why this matters

Privacy isn't a feature. It's a right. When you're having a conversation — whether it's a team standup or a late-night gaming session — that conversation belongs to you, not to us.

We believe the only responsible approach to user data is to never have access to it in the first place.