Open Whisper Systems announces beta rollout of video calling feature for Signal app, which comes with new privacy tradeoffs
Even as the encryption app Signal became the go-to private communications channel for activists, journalists, politicians, and more, its encrypted calling feature remained less than perfect.
Context & Ripple Effects
Signal has been assembling a full private communications stack piece by piece: encrypted texting arrived alongside encrypted calls on iOS in version 2.0, the Android app consolidated TextSecure and RedPhone into a single client, and Signal Desktop opened to all users in 2016. What remained unfinished was live media — the description notes encrypted calling itself was still 'less than perfect' even as activists, journalists, and politicians made Signal their default channel.
Video calling is the next rung on that ladder, and it lands on an unusually small team: the company behind Signal runs on roughly five employees while licensing its encryption protocol to Facebook and others. That gap — a tiny nonprofit shipping real-time video against consumer giants — is why the announced privacy tradeoffs matter more here than they would at a mainstream platform.
First-order effects
- Beta users gain encrypted video calls, closing the last major feature gap with mainstream messengers, but the new privacy tradeoffs land directly on Signal's core constituency of journalists, activists, and politicians who chose the app specifically for its minimal-data posture.
- A five-person Open Whisper Systems now has to operate real-time media relay infrastructure, a materially heavier operational burden than text messaging or audio-only calls.
Second-order effects
- Rivals face pressure to match encrypted video rather than just encrypted text — the dynamic already visible when [[a:925713|Skype partnered with Open Whisper Systems to test end-to-end encrypted Private Conversations]], effectively adopting Signal's protocol to keep pace.
- Every server-assisted feature Signal adds creates a template question for the rest of the encrypted-messaging market: how much metadata can a privacy-first app touch before its promise erodes, a tension competitors will be judged against.
Third-order effects
- If the pattern holds, encrypted messaging consolidates around a small number of licensable protocols — with Signal's technology already inside Facebook and Skype — while the differentiator shifts from having encryption to how little data each implementation retains.
- The tradeoffs introduced by video calling foreshadow the recurring design problem Signal itself later tackles head-on with a contact-scanning system built to provably delete server data, suggesting the industry's structural challenge is adding rich features without rebuilding centralized data stores.
The trend: Secure messengers are expanding from text into full multimedia communication, turning encryption protocols like Signal's into shared industry infrastructure while making data-minimization the competitive frontier.