You can invite someone to Signal using the "Invite Friends" menu in the app, which will send a text message or email.

Did you know you can customize Google to filter out garbage? Take these steps for better search results, including adding my work at Lifehacker as a preferred source. Google doesn't have the best ...

Signal is a secure messaging app that encrypts all communication from end to end, making all data accessible only to the ...

We are committed to protecting the confidentiality and safety of our sources. Signal is a free, end-to-end encrypted ...

In a company blog post, Google said that enterprise Gmail users can now send end-to-end encrypted emails to anyone. Not just ...