The company Cellcrypt released an application on Tuesday for mobile phones running Android that encrypts voice calls, addressing increasing concern that voice traffic over cellular networks could ...

Sunbird, the iMessage for Android, has paused its operations. It gained attention after the Nothing Chats app.

AT&T and Verizon continue to be under attack, so law enforcement advises the use of encrypted apps for messages and calls.

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 ...

Texts between iPhones and Androids are not encrypted, but end-to-end encrypted messaging apps can be downloaded and used instead. Getty Images/iStockphoto ...

As a result, the officials are urging Americans to use secure and encrypted messaging apps and formats to prevent their private communications from being exposed.