The Problem with Mobile Phones

Mobile phones have become ubiquitous and basic communications tools—now used not only for phone calls, but also for accessing the Internet, sending text messages, and documenting the world. Unfortunately, mobile phones were not designed for privacy and security. Not only do they do a poor job of protecting your communications, they also expose you to new kinds of surveillance risks...

This article, "The Problem with Mobile Phones" by the EFF (February 10, 2018) is recommended reading for anyone who carries a mobile phone (most of us) and is concerned about data privacy and personal security.

Privacy International explains IMSI Catchers

How StingRay Cell-phone Surveillance Devices Work
(YouTube Video / Washington Post, April 11, 2018)

What is a Stingray? - Stingray Documentary Clip (2016)

Cell phones and other wireless electronic devices are vital communications tools that have become necessary for full participation in modern life. But they are also powerful tracking devices that can be used to infringe on individual privacy.

Knowing where a person’s phone is located can reveal sensitive information, like when they go to the doctor or psychologist, what political activities they engage in, who they spend time with, and where they sleep at night. Law enforcement agencies can often obtain this personal information without ever getting a warrant from a judge. The federal government also invokes powerful surveillance authorities to collect this information and more, including our call records, contact lists, and even the contents of our text messages and calls.