On April 17, the French government introduced an Android application meant to be used by government employees as an internal secure channel for communications. Called Tchap, it was touted as a replacement for WhatsApp and Telegram, providing (in theory) both group and private messaging channels to which only people with government email addresses could join.
Tchap is not intended to be a classified communications system—it runs on regular Android phones and uses the public Internet. But as the DINSIC, the French inter-ministry directorate for information systems that runs Tchap put it, Tchap “is an instant messenger allowing government employees to exchange real-time information on everyday professional issues, ensuring that the conversations remain hosted on the national territory.” In other words, it’s to keep official government business off of Facebook’s and Telegram’s servers outside France.
Based on the Riot.im chat application from the open source project Matrix, Tchap is officially still in “beta,” according to DINSIC. And that beta test is getting off to a rough start. Within two days, French security researcher Baptiste Robert—who goes by the Twitter handle @fs0c131y (aka Elliot Alderson)—had tapped into Tchap and subsequently viewed all of the internal “public” discussion channels hosted by the service.
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