Signal Jammer Tech

The AIIMS entrance exam has sparked a great deal of commotion, catching many off guard. However, the city university has implemented precautionary measures to avoid such incidents. While certain universities have installed jammers at entrances, others have opted for metal detectors or security guards. Nonetheless, only a few universities have taken the initiative to implement all of these measures. Jammers effectively detect mobile signals, thereby preventing students from resorting to unfair practices cell phone jammer.

The installation of jammers at the exam hall of Punjab College of Technical Education (PCTE) was carried out by Ms. Kang, the college's director, two years ago. This decision was made when approximately 900 students were undergoing their exams. Ms. Kang pointed out that the implementation of a disruptor could effectively resolve the issues faced by all individuals by disabling their cell range.

The director of Guru Nanak Institute of Management and Technology (GNIMT), HS Singha, stated that the implementation of two jammers on the campus three years ago has successfully deterred cheating. Furthermore, stringent physical verifications are conducted to ensure students do not have phones in their possession wifi jammer.

MS Saini, the principal of Guru Nanak Dev Engineering College (GNDEC), voiced concerns about students resorting to unethical means to achieve better academic results. He emphasized the challenges posed by the students' increased capabilities, making physical verification nearly impossible and necessitating the installation of 11 jammers on campus. Furthermore, the college has implemented three metal detectors and enhanced security measures at the entrance gates.

The head of Ludhiana College of Engineering and Technology, Pawan Kumar Gupta, stated that the institution had installed five jammers and two metal detectors on the campus approximately three years ago. He suggested that if other educational institutions adopted similar measures, the likelihood of cheating through technological means would be greatly diminished signal jammer.

Can mobile jammers in colleges stop cyber crime?

The prospect of prohibiting mobile phones on campus has caused a sense of unease among students at universities across the city. The Maharashtra government's higher and technical education department is contemplating this ban as a preventive measure against cybercrime in universities.

However, students were disenchanted by the perceived violation of their liberties. Lala Atole, a student at ILS Law School, argues that the proposed ban makes no sense gsm jammer.

"School authorities can impose stricter rules on the use of mobile phones in classrooms, but installing jammers will directly impact students' freedom," he said. Some students believe that installing jammers will not affect most students as they are addicted to gaming during classes. "If cell phones are banned and we can't even answer important calls, students might think of skipping lectures. How does that help students?"

A student from Garware College, Vedang Bhagwat, brought up a question. Despite students expressing their discontent with the decision, there is a division among university authorities regarding the proposal. The authorities are considering the installation of jammers in classrooms, but are hesitant to implement them throughout the campus.

Hrishikesh Suman, principal, Symbiosis College of Arts and Commerce, opined, "Jammers will definitely help prevent distractions during classes. However, outside the classroom, this may affect the internal academic communication with the teacher." Only by getting the power to control jammers, The authorities will welcome this move. "Signal jamming affects our security systems and hampers emergency communications. Also, students are not used to restrictions and this may do more harm than good," said Dilip Sheth, Principal, SP College. Teachers believe it would be more helpful for students to voluntarily refrain. “Students should voluntarily refrain from using mobile phones without our close attention,” added MMCC principal MD Lawrence. Some even favor the use of cell phones on campus.

Girija Shankar, vice-chancellor of Neswadia Business School, highlighted that disruptors are not a suitable solution, given the abundance of out-of-town students in Pune and the necessity for their guardians to contact them.

Authorities with the Los Angeles Police Department are warning residents in Los Angeles’ Wilshire-area neighborhoods of a series of burglaries involving wifi jamming technology that can disarm surveillance cameras and alarms using a wireless signal.

According to police, the burglaries typically involve three to four suspects who enter homes through a second story balcony.

Once inside, the thieves target primary bedrooms in search of high-end jewelry, purses, U.S. currency and other valuables.

Man found dead in pond of Southern California apartment complex

“On many occasions, these suspects will have a getaway vehicle and driver to act as a look out,” authorities said in a community alert.

To deter these types of burglaries, authorities provided the following tips:

• Ensure your electrical circuit boxes are secured with a padlock to make it harder for thieves to tamper with alarm systems


• Never tell Uber, Lyft or taxi drivers or post on social media that you will be on vacation or away from home


• Stay alert for suspicious vehicles with temporary or dealer plates, as well as rental vehicles


• Share your cellphone number with trusted neighbors and ask them to clear your mail and keep an eye on your residence if you plan to be away


• Place cameras around the home and ensure that the alarm DVR is secure and cannot be tampered with


• Consider moving to an alarm system that is hard wired rather than running on a wireless signal


• Provide extra security such as a pole to sliding glass doors to eliminate easy opening


• Place tracking devices, such as Apple AirTags, on valuable items like jewelry boxes, purses or vehicles


• See what shrubbery or trees can be trimmed or cut to keep your residence highly visible


• Install proper lighting and security signage and always leave light on in your home, especially while away

Anyone with information on any of these crimes is encouraged to contact LAPD’s Wilshire Burglary Detectives at Wilshireburglary@lapd.online. Those wishing to remain anonymous can contact L.A. Regional Crime Stoppers at 800-222-8477 or online at L.A. Crime Stoppers.

A current advisory has been issued for anyone using wireless security cameras like "Ring" to secure their home.

A Detroit woman expressed disappointment as her Ring camera did not capture the moment her car was stolen from the front of her house. A local expert suggests that this incident underscores the increasing technological proficiency of criminals.

The woman reported that her car had been stolen from her driveway at the start of the month. After checking her Ring camera footage, she realized that there were missing hours.

The assertion by Chris Burns, the proprietor of Techie Gurus, underscores that security cameras which rely on WiFi for recording prioritize convenience over security. This is due to the vulnerability of WiFi signals to interference, potentially hindering the camera's ability to capture footage of individuals near your residence, a loophole that criminals are exploiting.

In Burns' opinion, considering wireless as a security measure is misguided. He pointed out that wireless signals can be easily jammed or blocked.

Those wrongdoers have the option to use this as a wifi jamming mechanism, or a deauther, which could have the dimensions of an Apple Watch.

If you are in close proximity, a deauther can overpower a WiFi system, causing the WiFi camera to halt its recording. This accessory is relatively inexpensive, with prices ranging from approximately $10 to $50. Conversely, a singal jammer is considerably more expensive, with costs ranging from $150 to $1,000.

Jammers are highly prohibited, thus making them elusive to acquire. However, a robust jammer can obstruct an entire street from being recorded on WiFi security cameras with a simple toggle of a button.

Ring's spokesperson emphasized in a statement that Ring device performance may suffer due to WiFi signal interference, a common occurrence with wifi-enabled devices. Customers facing connectivity issues are advised to contact Ring Customer Support for assistance.

How can customers protect themselves?

It was mentioned by Burns that genuine security can be maintained by always using hard-wired connections, like being plugged into ethernet.

The spokesperson from Ring confirmed their awareness of the problem, underscoring its rarity.

Burns highlighted the inverse relationship between the affordability of technology and the growing popularity of camera jammer. Therefore, it is crucial to keep the public well-informed about this phenomenon.

Feb. 16 started like any typical Friday night. My husband and I decided to stay home, grill chicken and make a salad for dinner. At about 6:45 p.m., we heard some loud rumbling overhead.

We walked onto the back patio, and two police helicopters were overhead – shining lights all over our property, and a recording echoed, "Police. You are under arrest. Stay right there and I won't shoot you."

As I looked across the fence, a swarm of armed members of the Phoenix SWAT Team with a few dogs were circling our property. One of the guys said, “Yeah, there’s a signal jammer right here.” He picked it up. I leaned over the patio and asked, “What’s going on?”

The police told me to go inside

A SWAT member said, “Ma’am, A South American gang is targeting homes to steal from. The cell phone jammer says you might have been next. Do we have permission to enter your property?” I said, “Yes!” and then he asked something like, “If we find anyone, will you pursue charges so we can arrest them?” I replied, “Of course!”

I opened the driveway gates to our property and the guest house while Barry tossed the police keys to open the security gates. It turns out that when the gang saw we were home, they likely diverted their attention to the house next door. A house four doors down from us wasn't so lucky.

The homeowner left at 5 p.m. to have dinner and got a notification his security cameras were offline at 5:05 pm. He thought the internet went down. The gang broke in and took $25,000 in cash and valuables worth $100,000. They were in and out in less than 10 minutes.

How are they getting away with this?

The gang places cellular and wifi jammer around the homes they’re targeting. This way, security cameras and phones are useless. A Phoenix police officer told me the gang probably noticed nothing was down in our house.

Our home’s security cameras and internet are hard-wired. Even when the thieves tried to jam the Wi-Fi signals, the security camera’s red lights showed they were recording everything. We also still have a landline.

But how frightening is that? Your phone doesn't work. Your cameras aren't recording anything. On the upside, the gang doesn't carry guns. If they get caught, they'll spend about six months in jail before being extradited to Chile.

If you’d like to watch the action captured by my security cameras, I showed them during a Kim Komando Today video stream. I am so thankful for our police force.

Nothing is random

The gang thoroughly scopes out homes beforehand. They drive the neighborhood and look up homes on real estate sites to get an idea of where the primary bedroom is located. They look for dogs, too.

It’s not only a problem in Phoenix. This is happening all over the country. A friend was robbed by a similar gang in a guard-gated community in California. Kudos to Phoenix Police – they arrested three members of the gang who were in my neighborhood that night.

How to stop wifi jammer attacks on home security systems

The internet was abuzz with a viral news story from Queens, New York, which showcased a burglar effortlessly sliding across the floor while holding an enigmatic device. According to reports, this device was suspected to be a wifi jammer, strategically employed by the intruder to disable the home's wifi network and render the alarm system inoperable, allowing him to carry out his activities undetected.

Is this even possible? Yes, yes it is.

So what is a wifi jammer?

In essence, these jamming devices generate a frequency that disrupts the functioning of 3G, 4G, 5G, cordless, and wifi networks. Essentially, they affect all of these networks.

The presence of excessive noise disrupts the functioning of devices that rely on those frequencies for their normal operation. This interference extends to emergency networks used by first responders, which is the reason why the use of such devices is deemed illegal. However, these unauthorized devices are produced and traded on the black market, and individuals can potentially create their own. It is strongly recommended not to search for instructions online, as it may lead to being monitored by authorities.

Through the generation of disruptive noise, a signal blocker device disrupts the frequencies utilized by our devices, preventing their proper functioning. This interference extends beyond the intended targets, affecting a significant number of devices.

With this new information in mind, do you foresee any issues with your phones, alarm sensors, alarm base station, smart locks, and wifi cameras? It is a potential risk.

You might be wondering about this: "Andy, my alarm system has a cellular backup for when the wifi goes down. Will it still be functional?" Sadly, the answer is no. The sensors will be unable to establish communication with the base station due to the interference caused by these jammers. It is crucial to keep in mind that these jammers not only disrupt wifi signals but also block mobile spectrums, rendering your base station incapable of making calls over wifi or a cellular network.

How To Stop Wifi Jammer and Deauth Attacks

With knowledge about the nature and outcomes of these attacks, what steps should we take to defend against them? Have you remembered my caution about refraining from showcasing the alarm company branded sign in your yard?

This serves as an explanation as to why it is crucial to keep your home security methods confidential to avoid being targeted by criminals who could exploit your defenses. It is quite simple to identify companies that utilize the 2.4 GHz band.

When selecting new smart home products, ensure they are dual-band or compatible with the 5 gigahertz frequency. I've read about the potential benefits of WPA3 security in preventing these attacks, but as a novice, I cannot confirm its effectiveness. Regrettably, wireless alarm systems are still at risk of jammer attacks.

Select the old-fashioned route by installing a fully wired home alarm system that is connected to a landline. If there are no wireless components, then you should have no issues.

Local storage is a key feature in cameras provided by companies like Ring. This feature allows the cameras to continue recording clips even if there is a wifi outage or cloud storage is not accessible. While you may not receive notifications during such circumstances, you can still access the footage by simply checking the SD card inserted in the camera itself.

To ensure the reliability of your home security, it is recommended to consider adding a cost-effective local storage camera to your existing wifi camera system. By doing so, you can mitigate the risk of losing all footage in the event of a jammer or deauth attack. However, it is crucial to note that if the attackers identify the camera, they may try to vandalize it and take it along.

According to the police, this technology has been utilized in a string of nine robberies in Edina.

In Edina, Minnesota, a serial burglar is suspected of employing a Wi-Fi jammer to incapacitate connected security cameras. This method allows the burglar to carry out thefts and escape with the valuable possessions of their victims.Minnesota is not commonly thought of as a technology hub, so it should come as no surprise that incidents involving Wi-Fi jammers aiding in burglaries in the U.S. have been reported for several years. This serves as a reminder that technology is being utilized by criminals, and an increasing number are recognizing its potential -- hence, homeowners should consider taking precautions.

The Edina police have raised suspicions that nine burglaries occurring in the previous six months might have utilized Wi-Fi jammers to prevent the acquisition of incriminating video evidence by investigators. It is believed that the perpetrators have a specific way of carrying out their crimes:

• Dwellings are situated in affluent regions.


• The houses are carefully surveilled by burglars.


• The burglars steer away from confrontation, opting to wait until homes are unoccupied.


• Seizing the chance of a vacant home, the perpetrators will employ Wi-Fi jamming technology.


• Thieves often focus on stealing high-value designer items like safes, jewelry, and other luxury goods.

A security expert, interviewed by KARE11, shared valuable information regarding the nature of jammers. The expert clarified that signal jammer do not block signals but instead create confusion among wireless devices. By overwhelming wireless traffic, these devices effectively disrupt the flow of genuine data, as informed to the source publication.

Jamming wireless security devices is a growing trend

Searching back through news reports concerning burglaries where wifi jammer have / may have been used surfaces plenty of prior evidence of this practice. A Ring community post about one of the firm’s wireless doorbells missing a porch thief after being subjected to a Wi-Fi deauthentication attack was posted back in January 2020. It is also easy to find reports of burglars using Wi-Fi jamming technology over 2021, 2022, and 2023 – with reports becoming more frequent over time.

Ring is highlighted as one of the companies that played a role in making video doorbells more mainstream to address a range of home security concerns, although other wireless smart home security products from Blink (Amazon) and Nest (Google) may also face vulnerabilities to wireless signal interference.

As we come to a close, we would like to offer a few recommendations to those who may be wondering about the effectiveness of their home security systems with wireless components. Firstly, consider establishing physical connections for certain devices that support wired connections and enable local storage of recorded footage. Secondly, make use of smart home technology that can create the illusion of occupancy. Additionally, your device may have the capability to send alerts in case of signal or connection interruptions, so it may be worth exploring and adjusting these settings.

I read a few of the news articles and it sounds like the thieves are jamming WiFi and the sensors. This prevents the system from even triggering. The thieves are walking around the homes without the glass break, door, and motion sensors going off it seems.

Not commonplace, but getting some exposure in the news recently - gangs of organized thieves in metro Detroit area are targeting upper scale homes for burglaries. They are purportedly using wifi jammer to circumvent alarms (like Ring).

What can millions of Ring (and customers from other wifi-dependent alarm companies) do about this? IS there a viable counter to these signal jammer? Maybe it's time to explore legacy, analog wired alarm solutions as backup instead of the reverse?

They're using a wifi jammer, according to this article. No obvious way to prevent this, so hardwired systems would be the only resistant option.

Most Wi-Fi jammers use disassociation flooding to kick the devices off the network. This attack is prevented with WPA3 which can use protected management frames. Unfortunately Ring still hasn’t got around to adding WPA3 support to its devices. It was requested via their feature request process a long time ago, so I’m not overly hopeful they’ll add it.

There are trade offs and risks with each security system. There’s also different types of burglars from opportune amateurs to seasoned pros.

If you’re concerned about this threat, there’s a raft of solutions out there with high definition footage without any reliance on Wi-Fi or internet.

Whatever they're using for jamming must go beyond the WiFi frequencies to affect z-wave and whatever frequency Honeywell et al uses for their RF communications.

This makes sense because most alarm systems these days (even ADT/Brinx/etc) rely mostly on wireless sensors.

This is a huge vulnerability because it's pretty rare to find a security system that's been installed to use all hardwired sensors. To go hardwired you probably had to have it built-in as the house was built or did it while doing some major remodeling.

Cellular jammers are readily available. DSL, cable, or fiber are not jammable, but all devices need to be hardwired.

Zwave can be jammed just as easily as wifi. Cellular is great but if the door/window sensors are blocked and unable to report to the base station, the alarm won't think anything is wrong.

What I found when doing some simple research over the last couple of days is that different manufacturers use different frequencies for their devices so it might be a guessing game for the burglar, although my guess is that the professional burglars carry jammers for most of the common frequencies used by the big name brands like Ring, Simplisafe, Nest(ADT), etc.

To me it makes sense to have devices from different brands. Ring doorbell, ADT alarm, Wyze cameras, etc...

What's scary is that there are a bunch of videos on youtube demonstrating how easy it is to bypass these alarms AND with instructions telling you exactly how to do it and how to get the jammers.

Is this pervasive? If you watch the news, it’s pretty evident thieves aren’t concerned with cameras. They mask up and hood up and go. Be on alert, they have no fear.

Burglars can use wide-band jammers to jam all frequency bands : GSM, LTE, Wifi and Z-Wave. Some alarm systems are robust to such attacks (like Ajax Alarm System -- https://ajax.systems/blog/what-is-jamming/).

In short, the alarm hub must be hardwired with Ethernet to your router; And hub, router and modem on a battery backup. Then, only communications between sensors and hub can be jammed.

Then, alarm hub communicates frequently with sensors. If communication fails, it signals a jamming attack, notifying the user via hardwired Internet. With a working speaker on the hub, it can sound a siren and send a voice alert to the intruders.

SimpliSafe system is another system that offers some jamming protection, but lacks the Ethernet hardwired connection, so it must rely on a GSM/LTE link, which is still better than Wifi alone.

The Department of Telecommunications (DoT) has issued a notice advising against the use of cellular signal jammers, GPS blockers, or other signal jamming devices by the general public, stating that it is illegal unless specifically authorized by the government.

A memorandum was publicly released by the Department of Telecommunications (DoT) on July 1, aiming to address public concerns. Within this memorandum, it was made clear that the government-approved jammers can only be obtained and utilized by states, union territories, defense forces, and central police organizations.

The advisory mentioned that private sector organizations and private individuals are not permitted to obtain or employ jammers in India.

Jammers approved by the competent authority can be employed by examination conducting bodies under the union/state government or union territories, sourced from authorized vendors and approved models.

Furthermore, it has been emphasized by the Department of Telecommunications that the advertisement, sale, distribution, importation, or any other marketing of jammers in India is against the law, unless specifically allowed by government regulations.

The Department of Transportation (DoT) has classified the use of mobile signal repeaters and boosters by individuals as illegal, not just limited to jammers. A memo released by the DoT emphasizes that the unauthorized use of repeaters can have adverse consequences on public telecommunication services by compromising their quality and coverage, leading to interference and disruption.

Back in January, the DoT had sent out a strict warning to e-commerce giants like Amazon, Flipkart, Snapdeal, Alibaba, Aliexpress, Ebay, and others, advising them against aiding in the sale of wireless jammer.

By the end of May, the oilfield company must dispute a $126,000 penalty imposed by the Federal Communications Commission. The fine was issued due to the company's interference with cellphone calls.

The FCC took action on April 9 by adopting a notice of apparent liability against Taylor Oilfield Manufacturing Inc. of Broussard, alleging that the company used four cellular phone jammers to limit employees' cellphone usage.

Officials from the company explained to the FCC that the cell jammers, designed to block cellphone signals, were employed to discourage employees from using their cellphones while on duty.

A 30-day deadline was set for Taylor, beginning on April 9, to either pay the penalty or submit a written explanation to the FCC justifying a cancellation or reduction of the fine.

Taylor officials remained silent in response to phone calls inquiring for a comment.

The initiation of the case occurred when the FCC was informed and subsequently deployed an agent to the company's location in Broussard during May 2012. According to the FCC notice, company officials verified the usage of four cell jammers and the ownership of a fifth cell jammer, which was not being utilized at that particular moment.

In the United States, the utilization of cell jammers is strictly forbidden, and the FCC has implemented regulations that prevent companies from importing such devices from abroad. The FCC confirmed that the Broussard company acknowledged procuring their cell jammers from overseas sources.

The FCC has highlighted the serious public safety threat caused by the unlawful operation of signal blockers, which has the potential to block authorized communications such as emergency calls to 911 and law enforcement communications. Furthermore, the use of cell jammers can also disrupt global positioning system signals.

The FCC documents reveal that Taylor's spokespersons stated that the company made an effort to prevent employee cellphone usage after a near accident that was partially linked to an employee using a cellphone.

Prisons no longer possess any cellphone jammer as Corrections has quietly removed them all.

The technology that was introduced in 2008-09 to stop inmates from using smuggled mobile phones has led to expenditures exceeding $17 million.

Following their discovery of causing interference with the newly implemented safety systems for prison guards, the use of jammers has been discontinued since June.

The announcement of cellphone blocking in New Zealand prisons was accompanied by Corrections Minister Phil Goff's assertion that this measure represents a crucial progression in deterring prisoners from perpetrating further crimes while confined.

Recent information obtained under the Official Information Act discloses the number of cellphones confiscated from the 18 prisons under the management of Corrections over the past three years.

Corrections staff found 626 cellphones and over 750 cellphone-related items, which included batteries, chargers, and SIM cards, between January 2020 and November of the current year.

In response to the question of why inmates were smuggling cellphones despite the presence of cellphone jammers in the prison, Neil Beales, the Corrections chief custodial officer, stated that the jammers were removed in June.

The discovery was made that the jammers were causing disruptions to newly installed safety systems, particularly impacting the effectiveness of alarms used to ensure the safety of corrections officers.

The evolution of cellular technology has rendered jammers progressively obsolete.

Beales pointed out that the tool mentioned was just one of several methods employed to deter the use of cellphones in prisons. He emphasized that there are still several other more effective tools in place.

The array of features offered by Cellsense devices sets them apart in the field of cellphone detection. These devices are capable of detecting a diverse range of metals commonly found in cellphones, while also incorporating screening and x-ray functionalities. Furthermore, they employ the assistance of detection dogs to further enhance their metal detection capabilities.

Beale pointed out that some prisoners are willing to take extreme and elaborate measures to bring contraband into prisons, and we are always striving to be one step ahead of the new methods used for smuggling contraband into our correctional facilities.

In order to enhance their existing systems, Corrections has been evaluating new and emerging technology, as stated by the spokesperson. They have already started implementing full body imaging technology at multiple locations to identify contraband that may be hidden on or inside a person's body.

Corrections authorities in 2018 recognized that cellphone jamming technology had caused a communications blind spot near Rimutaka Prison, preventing the tracking of residents in a child sex offender unit located outside the prison perimeter.

Cellphones have the potential to enable inmates to exert pressure on individuals outside the prison, as well as to coordinate criminal activities such as drug deals. In May of this year, nine prison employees at Rimutaka were suspended for suspected misconduct, which involved the smuggling of cellphones into the facility.

The decision made by Corrections to discontinue the use of jammers is in line with the concerns expressed by Roger Brooking, a criminologist and drug and alcohol counsellor, who has consistently questioned the effectiveness and cost of this technology.

He expressed that their performance is inadequate and has consistently been so.

Prisoners have shared with me that they have identified specific areas in the prison where the signal blockers does not work as intended. This loophole has enabled inmates to make illicit phone calls for activities like drug transactions or personal conversations.