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Jammers can make up for the shortcomings of cellular networks

Your network operator can update the card's DES 3DES encryption algorithm and avoid the possibility of installing third-party Java applets. In addition, you can change your SIM card to one with a higher level of protection without having to act like an exploit. If you think your phone is at risk, another solution is to use a cell phone signal blocker.

Many Catholics and representatives of other Christian denominations around the world gasped in the chapel of the Vatican's Sistine Chapel as they elected a new Pope. The convention center opened on March 12, and it's probably the most fun and safe convention center in a long time. The stakes are so high that this is the first truly major information security incident. The entire Sistine Chapel and Santa Maria residential area are equipped with GSM signal jammers to prevent data leaks.

1. So how can we keep our personal information safe, even on a carrier's network? First, it is wise to avoid sending secret data in such an unreliable way. Keep your antivirus applications updated, as many malicious programs can access the network and potentially put you at risk. Also, mobile Internet jammers are useful because you never know if your smartphone has been infected. Keep your personal information safe.
2. You should know that smartphones are not always safe. All of these modern devices have their own specific vulnerabilities. Some exploit vulnerabilities in mobile operating systems and some exploit vulnerabilities in security protocols. But the fact remains. Most vulnerabilities are user errors.
3. We all know that the National Security Agency collects personal information on American citizens and tries to tell us what steps are being taken to fight terrorists. Well, these people are targeting the weakest of modern products - our smartphones.
4. Mobile operators and major manufacturers are not involved in the process, but the move is suspicious. First, big vendors like Verizon have taken a stand on personal information and sold it.

The question remains: Can these networks be prevented from operating, and will this improve information security? But it's technically hard to do. First, if software methods are used to block access, employees are likely to use TOR or other anonymous services to get information. Moreover, these days, smartphones with mobile Internet access are not surprising, just like most of your colleagues. Therefore, in most cases, the best solution is to use software to block access and use Wi-Fi networks to block mobile Internet, which is why many companies install a combination of phone jammer they have 3G, 4G and WiFi in their offices. However, it's important that employees understand why you're doing this.

Many people use jammers because they want to avoid GPS tracking

• Since it was fully opened to civilian use in 2000, the Global Positioning System (GPS) has been widely infiltrated into our lives. On land, on water and in the air. Location, navigation, tracking, mapping, timing. In cars, phones, watches. Progressive navigation, bus times, mining, terrain... Are accompanied by a variety of targeted jammers.

• GPS is launched by 24 major satellites orbiting 20,000 kilometers above the Earth, and radio frequency (RF) messages identify the satellite and give its position and time.

• The GPS receiver is tuned to four satellites and calculates the distance to each satellite based on the message arrival time and the speed of light. The receiver then calculates the three-dimensional position relative to the four satellites and relative to the Earth.

• The strong asymmetry between widespread damaging effects and the modest resources available for widespread GPS jamming is extremely attractive to adversaries. Unlike violent terrorist attacks involving explosives, guns, and knives, widespread (though illegal) GPS interference is nonviolent but annoyances many people and organizations.

• Short-range GPS jammers are now on sale. The typical model is a jamming device with an output power of 0.960 watts, which can completely disable GPS signals at distances of 15 to 40 m.

• The key question is: What is the actual remote range at which an enemy with a small amount of resources could actually deploy a wide-area GPS jamming device in order to be able to completely disable all GPS reception over a large contiguous geographic area?

• The math is in the box (right) - but the point is that opponents can use a cheap 3-kilowatt portable generator that costs about $500. In a boxy fiberglass pickup truck that costs about $10,000, GPS is completely disabled. The restoration work was carried out in a circular area with a diameter of 1.5 km.

Any competent electronics enthusiast, technician, or engineer should be able to use hundreds of dollars worth of parts to build jamming electronics.

Opponents operating wide-range GPS jammers on crowded, multi-lane highways can gain some interesting jamming advantages. Especially when using a more complex ultra-long range wifi blocker setup, a pair of parabolic antennas are used to concentrate all jamming RF power forward and backward along the device's axis of motion.

Using a simple power density formula does not take into account the loss of radiated power due to humidity (water vapor) in the air or rain, but it is undeniable that the attack of large-scale GPS interference has an asymmetrical appeal.

Unlike pickup trucks with fiberglass bodies, small trucks with metal bodies can be tinted with their twin rear Windows to hide a pair of satellite dishes behind them.

The smaller vehicle can carry a 9 kWh battery and can run the phone jammer at 3 kW for three hours. The antenna can be disguised as a rack or hidden in plastic cargo or ski cases mounted on the rack.