Child Monitoring and Security Information Archive 2019 - 22.27.25
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Monitor Phone Traffic
Judge Roger Vinson authorized the NSA on April 25 to obtain unlimited data for a three-month period from Verizon. While phone calls themselves were not monitored under the terms of the court order, related metadata were. The data Verizon handed over to the NSA covered both domestic and international phone activity going through their network.
If that was in fact the case, it was big mistake. The metadata attached to the picture of McAfee likely tipped off authorities to his physical location. Because the picture was taken with an iPhone, it automatically embedded the location where the picture was taken in the metadata. As it turns out, the metadata showed without a doubt that McAfee was at a Guatemalan resort. He was arrested shortly after.
Monitor Mobile Phone App
When an airplane flies across the country, the pilot is always in touch with the nearest air-traffic control station on the ground. As the plane travels, it gets handed off from one control station to the next. For example, traveling south along the East Coast, you’d say goodbye to New York and hello to Philadelphia, then to Baltimore, DC, and so on. Cell phones work in a similar way. Unlike land lines, which rely on interconnecting cables to carry their signals, cell phones use radio signals that are received and transmitted through communication towers. These towers are peppered across the country, and each tower services a small zone called a cell (get it). A typical cell is 10 square miles, but they can be smaller or bigger depending on the population of an area. Just like an airplane passes from one air traffic control tower to another, a cell phone is handed off from one communication tower to the next as it moves through a city's cells. You may have noticed this happening if you have carried a cell phone with you in a car, or on a train or a bus. As you pass from one cell to the next, sometimes the phone has to take a second to find the new signal, so it will go out of service for a second or two and then beep back on. Knee's system takes advantage of this process by using it to track traffic. Since cell phones each have unique identifiers, it's possible to track the movement of a particular cell phone as it travels around a city. If that cell phone happens to be in a car, you can use that information to figure out how fast the car is moving. And if you can keep track of thousands of cell phones at once, you can use that information to identify traffic jams on the city's major arteries. Knee says that may even help local police identify possible accidents: if traffic seems to be flowing fine in a particular spot and then suddenly stops, there's a good chance that an accident has happened. In order for this system to work, the cell phones don't have to be in use—they just have to be turned on. And you can do all of these things without knowing exactly who each cell phone belongs to, or eavesdropping on people's conversations. This system demonstrates the power of piggybacking onto existing technologies to accomplish a new task. There are many other examples. Receivers for the Global Positioning System, a worldwide network of navigation satellites originally built for the military, are now found in cars, laptops, and all kinds of consumer electronics. Several organizations are taking advantage of the down time on people's personal computers by offering free screensavers that process scientific data. And the Internet itself is really an expansion of a military computer network that dates back to the late 1960's. Now try and answer these questions: