What is Signal, the chat app used by Trump officials to share military attack plans?
Briefly

The recent incident involving a magazine journalist being added to a group chat of U.S. national security officials has raised concerns regarding the handling of sensitive information. This communication took place on Signal, shortly before U.S. airstrikes on Iranian-backed Houthi rebels in Yemen were initiated by President Trump. While Signal is recognized for its robust security and encryption features, the National Security Council is now investigating how this breach occurred, highlighting the importance of safeguarding national security data in communication channels.
The Atlantic's Jeffrey Goldberg revealed that a journalist was mistakenly added to a national security group chat before airstrikes were ordered by Trump.
Signal uses open-source encryption, securing communications, but the incident raises concerns about sensitive information handling in government.
Meredith Whittaker, president of Signal, affirmed the app's security, branding it the gold standard for private communications.
The National Security Council confirmed the authenticity of the chat message chain and is investigating the journalist's inclusion in the conversation.
Read at www.mercurynews.com
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