“Protest app” Bridgefy is full of flaws that threaten users everywhere

Enlarge / Demonstrations in Belarus over the reelection of Alexander Lukashenko are just one of the mass protests where Bridgefy is being promoted. (credit: SERGEI GAPON/AFP via Getty Images)

The rise of mass protests over the past year—in Hong Kong, India, Iran, Lebanon, Zimbabwe, and the US—has presented activists with a major challenge. How do you communicate with one another when Internet connections are severely congested or completely shut down and at the same time keep your identity and conversations private?

One heavily promoted solution has been Bridgefy, a messaging app that has the financial and marketing backing of Twitter cofounder Biz Stone and boasts having more than 1.7 million installations. By using Bluetooth and mesh network routing, Bridgefy lets users within a few hundred meters—and much further as long as there are intermediary nodes—to send and receive both direct and group texts with no reliance on the Internet at all.

Bridgefy cofounder and CEO Jorge Ríos has said he originally envisioned the app as a way for people to communicate in rural areas or other places where Internet connections were scarce. And with the past year’s upswell of large protests around the world—often in places with hostile or authoritarian governments—company representatives began telling journalists that the app’s use of end-to-end encryption (reiterated here, here, and here) protected activists against governments and counter protesters trying to intercept texts or shut down communications.

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