What is Signal? The private chat app is only private if you use it right
Ștefania Anghel
New York CNN — If you hadn’t heard of Signal before Monday, chances are you have now. The secure messaging app, available for iPhones and Android devices, has long been popular with journalists because of its robust privacy features. But the Atlantic’s editor in chief, Jeffrey Goldberg, revealed on Monday that he had been added to a group chat with President Donald Trump’s Cabinet members about military strikes on Yemen – raising serious national security concerns . While Signal offers more
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