What is ‘classified’ information? What are ‘secure’ communications? Here’s a primer
- The Trump administration's use of Signal for military discussions raised security concerns, as a journalist was included in the chat.
- President Donald Trump's administration claimed no classified information was leaked, despite discussing attack plans against Houthi rebels in Yemen.
- Expert Michael Williams explained that while Signal is encrypted, using personal devices poses risks of cyberespionage.
127 Articles
127 Articles
How Is Classified Information Typically Shared and Can Officials Declassify Secrets Whenever They Want? A National Security Expert Explains
Trump administration officials have shared contrasting accounts about whether they were discussing sensitive war information on Signal – but maintain that they did not share classified information.


How US classifies information
NATIONAL SECURITY
What Is ‘Classified’ Information? What Are ‘Secure’ Communications? Here’s A Primer
The Trump administration’s use of a popular messaging app to discuss sensitive military plans — with a journalist on the text chain — is raising questions about security and the importance of safeguarding the nation’s secrets. It’s also highlighting the differences between classified and public information, and demonstrating that even encrypted apps like Signal can lead to embarrassing leaks if the humans doing the texting don’t follow basic sec…
What is 'classified' information? What are 'secure' communications?
The Trump administration's use of a popular app to discuss sensitive military plans — with a journalist on the text chain — is raising questions about security and the importance of safeguarding the nation's secrets. It's also highlighting the differences…
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