The team led by U.S. President Donald Trump's national security adviser, Mike Waltz, set up at least 20 group chats on the ...

Many are raising questions about how highly sensitive information is being handled by national security officials.This ...

President Trump suggested Wednesday that the encrypted Signal messaging platform his top national security brass used to plan ...

Even if Signal had perfect, uncrackable security, high-level White House staff using it to discuss classified information ...

The app has robust privacy features and minimal data collection, as well as default end-to-end encryption of all messages and ...

Political fallout is mounting as some Republicans are breaking with the White House on the severity of the leak.

Learn more about Signal, including whether the news about its use in a military intelligence breach impacts its effectiveness ...

The developer of the Signal app, used by members of the Trump administration, explained Tuesday why its app is the "gold ...

Four sources tell Politico they were aware of at least 20 chat groups, all four confirmed sensitive information was discussed ...

Just as it did with Sweden, Signal is refusing to stay in a territory that undermines its encryption strategy, arguing that a ...

It’s an app that can be used for direct messaging and group chats as well as phone and video calls. Signal uses end-to-end ...

Government ministers routinely use encrypted messaging apps including WhatsApp and Signal amid concerns they might be used to ...