Signal, a messaging app known for its privacy-focused encryption, is facing scrutiny after a journalist was mistakenly added to a sensitive US government chat group. The situation has sparked concerns about security and government communication practices.
Jeffrey Goldberg, editor-in-chief of The Atlantic, revealed that he was unexpectedly added to a Signal group chat where US national security officials were discussing planned strikes on Houthi rebels in Yemen. This occurred just hours before the strikes took place. The National Security Council has since confirmed that the text chain appears to be authentic and is investigating how Goldberg’s number ended up in the group.
What is Signal?
Signal is a messaging app that provides secure direct messages, group chats, phone calls, and video calls. It uses end-to-end encryption, meaning messages are scrambled and can only be read by the intended recipient. The app’s encryption protocol is open source and is also used by WhatsApp.
Is Signal secure?
Signal is considered one of the most secure messaging apps, as encryption is enabled by default. However, it is not immune to errors or misuse. Some US government officials have used it for coordination, but under the Biden administration, its use on official White House-issued phones has been restricted.
How was the journalist added?
Adding someone to a Signal group requires their phone number. While this process is simple, mistakes can happen—such as adding someone with a similar name. This incident highlights potential security vulnerabilities, even in highly encrypted platforms.
Who owns Signal?
Signal was created by Moxie Marlinspike, a security entrepreneur, and is now maintained by the nonprofit Signal Foundation. The foundation, funded partly by WhatsApp co-founder Brian Acton, operates without advertisers or investors.
The incident raises concerns about security, accountability, and whether encrypted apps could be misused to avoid public transparency laws.
