Pagers and walkie-talkies over cellphones – a security expert explains why Hezbollah went low-tech for communications
The synchronized explosion of pagers and walkie-talkies in Lebanon in 2024 targeted Hezbollah, demonstrating the vulnerabilities and tracking capabilities of communication devices.
Electronic pagers across Lebanon exploded simultaneously on Sept. 17, 2024, killing 12 and wounding more than 2,700. The following day, another wave of explosions in the country came from detonating walkie-talkies. The attacks appeared to target members of the militant group Hezbollah.
The pagers attack involved explosives planted in the communications devices by Israeli operatives, according to U.S. officials cited by The New York Times. Hezbollah had recently ordered a shipment of pagers, according to the report.
Secretly attacking the supply chain is not a new technique in intelligence and military operations. For example, the U.S. National Security Agency intercepted computer hardware bound for overseas customers, inserted malware or other surveillance tools and then repackaged them for delivery to certain foreign buyers, a 2010 NSA internal document showed. This differs from accessing a specific person’s device, such as when Israel’s Shin Bet secretly inserted explosives into a cellphone to remotely kill a Hamas bombmaker in 1996.
Hezbollah, a longtime adversary of Israel, had increased its use of pagers in the wake of the Hamas attack on Israel on Oct. 7, 2023. By shifting to relatively low-tech communication devices, including pagers and walkie-talkies, Hezbollah apparently sought an advantage against Israel’s well-known sophistication in tracking targets through their phones.
The second wave of explosions in Lebanon involved walkie-talkies. AP Photo
Cellphones: The ultimate tracker
As a former cybersecurity professional and current security researcher, I view cellular devices as the ultimate tracking tool for both government and commercial entities – in addition to users, criminals and the mobile phone provider itself. As a result, mobile phone tracking has contributed to the fight against terrorism, located missing people and helped solve crimes.
Conversely, mobile phone tracking makes it easy for anyone to record a person’s most intimate movements. This can be done for legitimate purposes such as parents tracking children’s movements, helping you find your car in a parking lot, and commercial advertising, or nefarious ends such as remotely spying on a lover suspected of cheating or tracking political activists and journalists. Even the U.S. military remains concerned with how its soldiers might be tracked by their phones.
Mobile device tracking is conducted in several ways. First, there is the network location data generated by the phone as it moves past local cell towers or Stingray devices, which law enforcement agencies use to mimic cell towers. Then there are the features built into the phone’s operating system or enabled by downloaded apps that may lead to highly detailed user tracking, which users unwittingly agree to by ignoring the software’s privacy policy or terms of service.
This collected data is sometimes sold to governments or other companies for additional data mining and user profiling. And modern smartphones also have built-in Bluetooth, Wi-Fi and GPS capabilities that can help with locating and tracking user movements around the world, both from the ground and via satellites. https://www.youtube.com/embed/CxC1KCoGbIM?wmode=transparent&start=0 Your phone contains many sensors that make it useful – and easy to track.
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Mobile devices can be tracked in real time or close to it. Common technical methods include traditional radio direction-finding techniques, using intelligence satellites or drones, deploying “man in the middle” tools like Stingrays to impersonate cellular towers to intercept and isolate device traffic, or installing malware such as Pegasus, made by Israeli cyberarms company NSO to report a device’s location.
Nontechnical and slower techniques of user tracking include potentially identifying general user locations from their internet activity. This can be done from website logs or the metadata contained in content posted to social media, or contracting with data brokers to receive any collected location data from the apps that a user might install on their device.
Indeed, because of these vulnerabilities, the leader of Hezbollah earlier this year advised his members to avoid using cellular phones in their activities, noting that Israel’s “surveillance devices are in your pockets. If you are looking for the Israeli agent, look at the phone in your hands and those of your wives and children.”
Researchers have shown how these features, often intended for the user’s convenience, can be used by governments, companies and criminals to track people in their daily lives and even predict movements. Many people still aren’t aware of how much their mobile devices disclose about them.
Pagers, however, unlike mobile phones, can be harder to track depending on whether they support two-way communication.
Why go low-tech
A pager that only receives messages does not provide a signal that can facilitate tracking its owner. Therefore, Hezbollah’s use of pagers likely made it more challenging to track their operatives – thus motivating Israeli intelligence services’ purported attack on the supply chain of Hezbollah’s pagers.
Using low-tech tactics and personal couriers while avoiding the use of mobile phones and digital tools also made it difficult for the technologically superior Western intelligence agencies to locate Osama bin Laden for years after the 9/11 attacks.
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In general, I believe the adversary in an asymmetric conflict using low-tech techniques, tactics and technology will almost always be able to operate successfully against a more powerful and well-funded opponent.
A well-documented demonstration of this asymmetry in action was the U.S. military’s Millennium Challenge war game in 2002. Among other things, the insurgent Red forces, led by Marine General Paul van Riper, used low-tech tactics including motorcycle couriers instead of cellphones to evade the Blue forces’ high-tech surveillance. In the initial run of the exercise, the Red team won the contest in 24 hours, forcing exercise planners to controversially reset and update the scenario to ensure a Blue team victory.
Lessons for everyone
The preference for terrorist organizations like Hezbollah and al-Qaida to avoid using smartphones is a reminder for everyone that you can be, and likely are being tracked in various ways and for various purposes.
Israel’s purported response to Hezbollah’s actions also holds a lesson for everyone. From a cybersecurity perspective, it shows that any device in your life can be tampered with by an adversary at points along the supply chain – long before you even receive it.
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A mourner holds a portrait of Pope Francis at the Basílica de San José de Flores in Buenos Aires, a church where the pope worshipped in his youth.
AP Photo/Gustavo GarelloMolly Jackson, The Conversation
Pope Francis, whose papacy blended tradition with pushes for inclusion and reform, died on April, 21, 2025 – Easter Monday – at the age of 88.
Here we spotlight five stories from The Conversation’s archive about his roots, faith, leadership and legacy.
1. A Jesuit pope
Jorge Mario Bergoglio became a pope of many firsts: the first modern pope from outside Europe, the first whose papal name honors St. Francis of Assisi, and the first Jesuit – a Catholic religious order founded in the 16th century.
Those Jesuit roots shed light on Pope Francis’ approach to some of the world’s most pressing problems, argues Timothy Gabrielli, a theologian at the University of Dayton.
Gabrielli highlights the Jesuits’ “Spiritual Exercises,” which prompt Catholics to deepen their relationship with God and carefully discern how to respond to problems. He argues that this spiritual pattern of looking beyond “presenting problems” to the deeper roots comes through in Francis’ writings, shaping the pope’s response to everything from climate change and inequality to clerical sex abuse.
2. LGBTQ+ issues
Early on in his papacy, Francis famously told an interviewer, “If someone is gay and he searches for the Lord and has good will, who am I to judge?” Over the years, he has repeatedly called on Catholics to love LGBTQ+ people and spoken against laws that target them.
An LGBTQ couple embrace after a pastoral worker blesses them at a Catholic church in Germany, in defiance of practices approved by Rome.Andreas Rentz/Getty Images
But “Francis’ inclusiveness is not actually radical,” explains Steven Millies, a scholar at the Catholic Theological Union. “His remarks generally correspond to what the church teaches and calls on Catholics to do,” without changing doctrine – such as that marriage is only between a man and a woman.
Rather, Francis’ comments “express what the Catholic Church says about human dignity,” Millies writes. “Francis is calling on Catholics to take note that they should be concerned about justice for all people.”
3. Asking forgiveness
At times, Francis did something that was once unthinkable for a pope: He apologized.
He was not the first pontiff to do so, however. Pope John Paul II declared a sweeping “Day of Pardon” in 2000, asking forgiveness for the church’s sins, and Pope Benedict XVI apologized to victims of sexual abuse. During Francis’ papacy, he acknowledged the church’s historic role in Canada’s residential school system for Indigenous children and apologized for abuses in the system.
But what does it mean for a pope to say, “I’m sorry”?
Members of the Assembly of First Nations perform in St. Peter’s Square at the Vatican on March 31, 2022, ahead of an Indigenous delegation’s meeting with Pope Francis.AP Photo/Alessandra TarantinoAnnie Selak, a theologian at Georgetown University, unpacks the history and significance of papal apologies, which can speak for the entire church, past and present. Often, she notes, statements skirt an actual admission of wrongdoing.
Still, apologies “do say something important,” Selak writes. A pope “apologizes both to the church and on behalf of the church to the world. These apologies are necessary starting points on the path to forgiveness and healing.”
4. A church that listens
Many popes convene meetings of the Synod of Bishops to advise the Vatican on church governance. But under Francis, these gatherings took on special meaning.
The Synod on Synodality was a multiyear, worldwide conversation where Catholics could share concerns and challenges with local church leaders, informing the topics synod participants would eventually discuss in Rome. What’s more, the synod’s voting members included not only bishops but lay Catholics – a first for the church.
Participants arrive for a vigil prayer led by Pope Francis and other religious leaders before the 2023 Synod of Bishops assembly.Isabella Bonotto/Anadolu Agency via Getty Images
The process “pictures the Catholic Church not as a top-down hierarchy but rather as an open conversation,” writes University of Dayton religious studies scholar Daniel Speed Thompson – one in which everyone in the church has a voice and listens to others’ voices.
5. Global dance
In 2024, University of Notre Dame professor David Lantigua had a cup of maté tea with some “porteños,” as people from Buenos Aires are known. They shared a surprising take on the Argentine pope: “a theologian of the tango.”
Pope Francis drinks maté, the national beverage of Argentina, in St. Peter’s Square on his birthday on Dec. 17, 2014.Alberto Pizzoli/AFP via Getty Images
Francis does love the dance – in 2014, thousands of Catholics tangoed in St. Peter’s Square to honor his birthday. But there’s more to it, Lantigua explains. Francis’ vision for the church was “based on relationships of trust and solidarity,” like a pair of dance partners. And part of his task as pope was to “tango” with all the world’s Catholics, carefully navigating culture wars and an increasingly diverse church.
Francis was “less interested in ivory tower theology than the faith of people on the streets,” where Argentina’s beloved dance was born.
This story is a roundup of articles from The Conversation’s archives.Molly Jackson, Religion and Ethics Editor, The Conversation
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Inglewood, California, is taking a new approach to enhance mobility as plans for an ambitious automated people mover falter. On Tuesday, city officials announced a strategic pivot from the Inglewood Transit Connector’s original vision—a fully automated elevated system—to a more practical solution centered around dedicated bus lanes. This shift aims to bolster transit connections between local hubs and the city’s thriving sports and entertainment district.
Inglewood Transit Project
The revised project intends to transform the urban landscape over the next few years. Residents and visitors can look forward to the rollout of new mobility hubs dedicated solely to buses, separate lanes to ensure efficient transit, expanded bike infrastructure, and improved overall traffic flow. Furthermore, upgrades to walkability are including features designed to accommodate the influx of attendees for events at major venues like SoFi Stadium, YouTube Theater, Intuit Dome, and the Kia Forum.
Originally, the Inglewood Transit Connector sought to seamlessly link the Downtown Inglewood Metro station on the K Line with the rapidly developing sports and entertainment area. However, the ambitious people mover project faced significant challenges. Local officials, community members concerned about business displacement, and prominent figures like U.S. Rep. Maxine Waters voiced their apprehensions, ultimately leading to the project’s cancellation.
This strategic pivot signifies a more pragmatic approach to transit solutions in Inglewood. By focusing on dedicated bus lanes, the city can effectively improve access to its bustling attractions without the complexities and potential disruptions associated with constructing an elevated system.
The transition underscores Inglewood’s commitment to enhancing urban mobility, catering to both the local residents and the increasing number of visitors drawn to its vibrant entertainment scene. As the city embraces this new direction, the focus remains steadfast on creating a more connected, accessible infrastructure that meets the needs of its community.
Inglewood’s dedication to improving transit connections exemplifies a growing trend in urban planning—prioritizing adaptable solutions that can be implemented quickly while still serving the long-term goals of connectivity and sustainability. The dedicated bus lanes, complemented by enhanced bike paths and improved pedestrian walkways, will offer a holistic approach to transportation that can keep pace with Inglewood’s dynamic growth.
As the city moves forward with these changes, all eyes will be on Inglewood to see how this revised plan enhances community connectivity while supporting its vibrant cultural and entertainment district.
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One of two main craters on Alaska’s Mount Spurr, shown in 1991. Earthquake activity suggests the volcano is close to erupting again in 2025.
R.G. McGimsey/Alaska Volcano Observatory/U.S. Geological Survey, CC BYDavid Kitchen, University of Richmond
Volcanoes inspire awe with spectacular eruptions and incandescent rivers of lava, but often their deadliest hazard is what quietly falls from the sky.
When a large volcano erupts, as Mount Spurr appears close to doing about 80 miles from Anchorage, Alaska, it can release enormous volumes of ash. Fine ash can infiltrate the lungs of people and animals who breathe it in, poison crops and disrupt aquatic life. Thick deposits of ash can collapse roofs, cripple utilities and disrupt transport networks.
Ash may lack the visual impact of flowing lava, but as a geologist who studies disasters, I’m aware that ash travels farther, lasts longer and leaves deep scars.
Ash buried cars and buildings after the 1984 eruption of Rabaul in Papua New Guinea.Volcano Hazards Program, U.S. Geological Survey
Volcanic ash: What it is, and why it matters
Volcanic ash forms when viscous magma – molten rock from deep beneath Earth’s surface – erupts, exploding into shards of rock, mineral and glass carried in a near-supersonic stream of hot gas.
Towering clouds of ash rise several miles into the atmosphere, where the ash is captured by high-altitude winds that can carry it hundreds or even thousands of miles.
As the volcanic ash settles back to Earth, it accumulates in layers that typically decrease in thickness with distance from the eruption source. Near the vent, the ash may be several feet deep, but communities farther away may see only a dusting.
When Mount Spurr erupted in 1992, a dark column of ash and gas shot into the atmosphere from the volcano’s Crater Peak vent. Wind patterns determine where the ash will fall.U.S. Geological Survey
Breathing danger: Health risks from ash
Breathing volcanic ash can irritate the throat and lungs, trigger asthma attacks and aggravate chronic respiratory conditions such as COPD.
The finest particles pose the greatest risk because they can penetrate deep into the lungs and cause death by asphyxiation in the worst cases. Mild, short-term symptoms often resolve with rest. However, the long-term consequences of ash exposure can include silicosis, a lung disease and a possible cause of cancer.
The danger increases in dry regions where fallen ash can be kicked up into the air again by wind or human activity.
Risks to pets and livestock
Humans aren’t the only ones at risk. Animals experience similar respiratory symptoms to humans.
Domestic pets can develop respiratory distress, eye inflammation and paw irritation from exposure to ash.
Ash covers sheep in Argentina after the 2011 Puyehue volcanic eruption in Chile.Federico Grosso/U.S. Geological Survey
Livestock face greater dangers. If grazing animals eat volcanic ash, it can damage their teeth, block their intestines and poison them.
During the 2010 Eyjafjallajökull eruption in Iceland, farmers were advised to shelter sheep and cattle because the ash contained fluoride concentrations above the recognized safety threshold of 400 parts per million. Animals that remained exposed became sick and some died.
Harm to crops, soil and water
Soil and crops can also be damaged. Volcanic ash alters the acidity of soil and introduces harmful elements such as arsenic and sulfur into the environment.
While the ash can add nutrients such as potassium and phosphorus that enhance fertility, the immediate impact is mostly harmful.
Ash can smother crops, block sunlight and clog the tiny stomata, or pores, in leaves that allow plants to exchange gases with the atmosphere. It can also introduce toxins that render food unmarketable. Vegetables, fruit trees and vines are particularly vulnerable, but even sturdy cereals and grasses can die if ash remains on leaves or poisons emerging shoots.
Following the 1991 Mount Pinatubo eruption, vast tracts of farmland in central Luzon in the Philippines were rendered unproductive for years due to acidic ash and buried topsoil. If multiple ashfalls occur in a growing season, crop failure becomes a near certainty. It was the cause of a historic famine that followed the eruption of Mount Tambora in 1815.
Ash from a 1953 eruption of Mount Spurr included very fine grains, like powder. The ash cloud reached about 70,000 feet high and left Anchorage under a blanket of ash up to a quarter-inch deep, according to a U.S. Geological Survey report at the time.James St. John via Wikimedia Commons, CC BYElectron microscope images of ash show how sharp the shards are. The top left image of shards from Mount Etna in 2002 is 1 mm across. Top right is an ash particle from Mount St. Helens magnified 200 times. The shards in the lower images are less than 0.064 mm.Volcano Hazards Program, U.S. Geological Survey
Ash can also contaminate surface water by introducing toxins and increasing the water’s acidity. The toxins can leach into groundwater, contaminating wells. Fine ash particles can also settle in waterways and smother aquatic plants and animals. During the 2008 Chaitén eruption in Chile, ash contamination led to widespread fish deaths in the Río Blanco.
Ash can ground airplanes, gum up infrastructure
Ash clouds are extremely dangerous to aircraft. The glassy ash particles melt when sucked into jet turbines, clog fuel systems and can stall engines in midair.
In 1982, British Airways Flight 9 lost power in all four engines after flying through an ash cloud. A similar incident occurred in 1989 to KLM Flight 867 over Alaska. In 2010, Iceland’s Eyjafjallajökull eruption grounded more than 100,000 flights across Europe, disrupting travel for over 10 million passengers and costing the global economy billions of dollars.
Volcanic ash can also wreak havoc on infrastructure by clogging water supplies, short-circuiting electrical systems and collapsing roofs under its weight. It can disrupt transportation, communication, rescue and power networks, as the 1991 eruption of Mount Pinatubo in the Philippines dramatically demonstrated.
What to do during ashfall
During an ashfall event, the most effective strategy to stay safe is to stay indoors as much as possible and avoid inhaling ash particles.
Anyone who must go outside should wear a properly fitted N95 or P2 mask. Cloth masks provide little protection against fine ash. Rainwater tanks, troughs and open wells should be covered and monitored for contamination. Livestock should be moved to clean pastures or given uncontaminated fodder.
The challenges Alaska is facing if Mount Spurr erupts.
To reduce structural damage, ash should be cleared from roofs and gutters promptly, especially before rainfall.
Older adults, children and people who are sick are at greatest risk, particularly those living in poorly ventilated homes. Rural communities that are dependent on agriculture and livestock are disproportionately affected by ashfall, as are low-income people who lack access to clean water, protective masks or safe shelter.
Communities can stay informed about ash risks through official alerts, including those from the Volcanic Ash Advisory Centers, which monitor ash dispersion and issue timely warnings. The International Volcanic Health Hazard Network also offers guidelines on personal protection, emergency planning and ash cleanup.
The long tail of ash
Volcanic ash may fall quietly, but its effects are widespread, persistent and potentially deadly. It poses a chronic threat to health, agriculture, infrastructure and aquatic systems.
Recognizing the risk is a crucial first step to protecting lives. Effective planning and public awareness can further help reduce the damage.
David Kitchen, Associate Professor of Geology, University of Richmond
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Molly Jackson, Religion and Ethics Editor, The Conversation
This article is republished from The Conversation under a Creative Commons license. Read the original article.
