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The “Little Devil,” a Cheap and Easily Accessible Signal Jammer, Is Already Used by Criminals in Brazil to Disable Trackers and Disappear with Stolen Cars

Published on 08/09/2025 at 12:29
Criminosos usam bloqueador de sinal barato e fácil para burlar rastreadores no Brasil
Criminosos usam bloqueador de sinal barato e fácil para burlar rastreadores no Brasil
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Criminals Use “Capetinha” to Bypass Trackers and Police: In 2025, the Risk of Losing Your Car Increases Even with Insurance and GPS, Warns Expert.

The use of a cheap and easily obtainable signal jammer nicknamed “capetinha” has become routine among Brazilian criminals specializing in vehicle theft and robbery. This technology, which should protect drivers through GPS trackers, is being neutralized with a simple portable device.

According to a recurring warning from the channel Don’t Get Robbed, the popularization of this equipment calls into question the effectiveness of trackers and increases the risk of permanent loss of the car, even for those who pay for insurance or invest in electronic monitoring.

What Is the “Capetinha” and How Does It Work

The “capetinha” is an electronic device originally created to block cell phone and GPS signals.

Sold in physical stores and online platforms without major restrictions, it is inexpensive and can be discreetly carried in bags or pockets.

When turned on, the device emits interference waves that prevent the vehicle’s tracker from sending location information to the monitoring center.

The result is immediate: the police lose the chance to track the vehicle, which is often taken to chop shops or used in plate cloning schemes, known as “dublês.”

How Much It Costs and Where to Find It

According to investigations cited by experts and content from the channel Don’t Get Robbed, the jammer can be found for prices ranging from R$ 200 to R$ 800, depending on its power and range.

Although the import and sale of signal jammers are not regulated in Brazil, foreign websites and national marketplaces often offer the product without effective oversight.

This facilitates access for organized crime gangs, which have already adapted the technology for use in car and truck thefts.

Why Trackers Have Lost Effectiveness

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For many years, GPS trackers were considered the main weapon against vehicle theft.

Their efficiency allowed for real-time location of cars, resulting in quick arrests and recoveries.

However, the advancement of jammers revealed a vulnerability.

The “capetinha” not only nullifies the tracker but also interferes with nearby cell phones, demonstrating its powerful impact.

According to the channel Don’t Get Robbed, criminal technology has evolved at the same pace as security solutions, making it essential to use a combination of different protection methods.

Alternatives to Protect Your Vehicle

Experts in vehicle security emphasize that relying solely on trackers is no longer sufficient. Physical barriers remain one of the most effective options.

The gear lock, for example, requires time and tools to break, something incompatible with thieves’ haste.

In addition, preventive practices still make a difference.

Parking in well-lit areas, avoiding leaving the car in deserted streets, and using additional devices such as steering wheel locks or reinforced chains can significantly reduce the chance of the vehicle being stolen.

Impacts for Drivers and Insurers

The rise in the use of the “capetinha” also worries the insurance market.

With the increased risk, policy premiums may rise, especially for more targeted vehicles.

For drivers who cannot afford such costs, the loss of a car represents a financial and emotional blow that is hard to overcome.

The issue reveals a dilemma: the technology that should provide peace of mind for vehicle owners is now called into question by a criminal, cheap, and accessible version.

The result is that the risk of losing one’s car increases even for those who have invested in GPS or insurance.

The “capetinha” demonstrates how criminals can exploit security loopholes and challenge solutions that once seemed infallible.

For the driver, the lesson is clear: combining electronic measures with physical barriers is still the most effective way to protect oneself.

And you, were you aware of the existence of the cheap and easy signal jammer known as “capetinha”? Do you think the use of this device could change the way we protect our cars?

Leave your opinion in the comments — we want to hear from those living this reality on a daily basis.

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Maria Heloisa Barbosa Borges

Falo sobre construção, mineração, minas brasileiras, petróleo e grandes projetos ferroviários e de engenharia civil. Diariamente escrevo sobre curiosidades do mercado brasileiro.

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