Telecom

National emergency alerts potentially vulnerable to attack

On October 3, 2018, cell phones across the United States received a text message labeled "Presidential Alert." The message read: "THIS IS A TEST of the National Wireless Emergency Alert System. No action is needed."

Engineering

Show your hands: Smartwatches sense hand activity

We've become accustomed to our smartwatches and smartphones sensing what our bodies are doing, be it walking, driving or sleeping. But what about our hands? It turns out that smartwatches, with a few tweaks, can detect a ...

Consumer & Gadgets

New techniques allow greater control of smartwatches

Smartwatches aren't the easiest things to control, with their small screens and owners' bulky fingers. Georgia Institute of Technology researchers have invented new ways to interact that provide a little more control.

Security

Switzerland-based Wire adds video call encryption

Switzerland-based Wire is a package of private communications services which this month took on newer capabilities. It is an encrypted messaging app that first launched in December 2014 but it has been given additional secure ...

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Message

A message in its most general meaning is an object of communication. It is something which provides information; it can also be this information itself. Therefore, its meaning is dependent upon the context in which it is used; the term may apply to both the information and its form. A communiqué is a brief report or statement released by a public agency.

This text uses material from Wikipedia, licensed under CC BY-SA