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

Some strategies on how to best use Signal to keep your messaging secure. Some strategies on how to best use Signal to keep your messaging secure. is a senior science reporter covering energy and the ...

Signal is back in the headlines, but this time it’s not for a security breach, but rather a high-profile example of how it’s designed to work. Recent news highlighted an incident where classified ...

The messaging app Signal made news in March after a handful of White House officials, including Vice President JD Vance, used the app to communicate with each other (and, inadvertently, a journalist) ...

Still, when cities go dark, WhatsApp, Signal, and previously, Skype, have served as technological life rafts that keep aid ...