Security researchers have discovered an Android spyware that targeted Samsung Galaxy phones during a nearly year-long hacking campaign.
Researchers at Palo Alto Networks’ Unit 42 said the spyware, which they call “Landfall,” was first detected in July 2024 and relied on exploiting a security flaw in the Galaxy phone software that was unknown to Samsung at the time, a type of vulnerability known as a zero-day.
Unit 42 said the flaw could be abused by sending a maliciously crafted image to a victim’s phone, likely delivered through a messaging app, and that the attacks may not have required any interaction from the victim.
Samsung patched the security flaw — tracked as CVE-2025-21042 — in April 2025, but details of the spyware campaign abusing the flaw have not been previously reported.
The researchers said it’s not known which surveillance vendor developed the Landfall spyware, nor is it known how many individuals were targeted as part of the campaign. But the researchers said that the attacks likely targeted individuals in the Middle East.
Itay Cohen, a senior principal researcher at Unit 42, told TechCrunch that the hacking campaign consisted of a “precision attack” on specific individuals and not a mass-distributed malware, which indicates that the attacks were likely driven by espionage.
Unit 42 found that the Landfall spyware shares overlapping digital infrastructure used by a known surveillance vendor dubbed Stealth Falcon, which has been previously seen in spyware attacks against Emirati journalists, activists, and dissidents as far back as 2012. But the researchers said that the links with Stealth Falcon, while intriguing, were not enough to clearly attribute the attacks to a particular government customer.
Unit 42 said that the Landfall spyware samples that they discovered had been uploaded to VirusTotal, a malware scanning service, from individuals in Morocco, Iran, Iraq, and Turkey throughout 2024 and early 2025.
Turkey’s national cyber readiness team, known as USOM, flagged one of the IP addresses that the Landfall spyware connected to as malicious, which Unit 42 said supports the theory that individuals in Turkey may have been targeted.
Much like other government spyware, Landfall is capable of broad device surveillance, such as accessing the victim’s data, including photos, messages, contacts and call logs, as well as the tapping of the device’s microphone and tracking their precise location.
Unit 42 found that the spyware’s source code referenced five specific Galaxy phones, including the Galaxy S22, S23, S24, and some Z models, as targets. Cohen said that the vulnerability may have also been present on other Galaxy devices, and affected Android versions 13 through 15.
Samsung did not respond to a request for comment.
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![Exclusive: Redwood Materials lays off 10% in restructuring to chase energy storage business | TechCrunch
Redwood Materials has laid off around 135 employees, or roughly 10% of its workforce, as it restructures to better accommodate its growing energy storage business, TechCrunch has learned.
The cuts come just five months after Redwood cut 5% of its workforce, and three months after it closed a 5 million funding round that boosted the battery recycling company’s valuation to north of billion, as TechCrunch previously reported.
It’s been a difficult time in the battery industry lately. Earlier this month, battery recycler Ascend Elements filed for Chapter 11 bankruptcy protection, citing “insurmountable” financial challenges. Some battery-makers have also restructured or gone out of business as the automotive industry in the U.S. has backed away from its most optimistic and ambitious plans to transition to electric vehicles.
But Redwood Materials founder and CEO JB Straubel told employees that this new round of cuts is not a sign that the company is heading down the same path.
“Redwood today is the strongest it’s ever been,” Straubel wrote in an email to the workers who weren’t laid off, according to a copy viewed by TechCrunch. “The materials business is well on its way to profitability and has an exciting roadmap ahead.”
Straubel noted that Redwood “continue[s] to dominate the US battery recycling market” but also touted the company’s “great momentum” in its new energy storage business. Redwood has recently announced deals with Crusoe AI and, most recently, electric automaker Rivian to provide recycled batteries that can be used to power those companies’ facilities. The company declined to comment beyond the contents of Straubel’s email.
In his message, Straubel wrote that “parts of the company have expanded faster than needed to support the direction” of Redwood. As a result, he said Redwood is making cuts across multiple divisions, including the engineering and operations organizations, according to an employee who was granted anonymity to discuss the layoffs.
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“We are confident that we can deliver on our critical projects with a smaller team that is more focused,” he wrote. “We have successfully adapted to changes in the market that have bankrupted many of our competitors.”
Straubel went on to write that he is “more excited than ever with our path ahead as we build the most integrated and cost-effective critical materials and energy storage business in the world.”
“This is a self-sustaining business and will continue to make this company more valuable over time. We have the team and the technology to do what no other company can,” he wrote.
Workers who were laid off were told by Redwood’s chief HR officer that the layoffs were made “to sharpen our focus, our work and the size of our teams to support the direction Redwood is going in the future,” according to a copy of her email, which was viewed by TechCrunch.
Employees who were laid off are receiving severance and paid health benefits, according to Straubel’s email, as well as “career transition assistance.”
“I am grateful to the approximately 135 employees who we say goodbye to today — they’ve all contributed to building Redwood,” he wrote.
When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.#Exclusive #Redwood #Materials #lays #restructuring #chase #energy #storage #business #TechCrunchBatteries,battery recycling,electric vehicles,EVs,Exclusive,Redwood Materials](https://i1.wp.com/techcrunch.com/wp-content/uploads/2023/09/53200897797_87d290a75e_o.jpg?resize=1200%2C800&ssl=1 "Exclusive: Redwood Materials lays off 10% in restructuring to chase energy storage business | TechCrunch
Redwood Materials has laid off around 135 employees, or roughly 10% of its workforce, as it restructures to better accommodate its growing energy storage business, TechCrunch has learned.
The cuts come just five months after Redwood cut 5% of its workforce, and three months after it closed a 5 million funding round that boosted the battery recycling company’s valuation to north of billion, as TechCrunch previously reported.
It’s been a difficult time in the battery industry lately. Earlier this month, battery recycler Ascend Elements filed for Chapter 11 bankruptcy protection, citing “insurmountable” financial challenges. Some battery-makers have also restructured or gone out of business as the automotive industry in the U.S. has backed away from its most optimistic and ambitious plans to transition to electric vehicles.
But Redwood Materials founder and CEO JB Straubel told employees that this new round of cuts is not a sign that the company is heading down the same path.
“Redwood today is the strongest it’s ever been,” Straubel wrote in an email to the workers who weren’t laid off, according to a copy viewed by TechCrunch. “The materials business is well on its way to profitability and has an exciting roadmap ahead.”
Straubel noted that Redwood “continue[s] to dominate the US battery recycling market” but also touted the company’s “great momentum” in its new energy storage business. Redwood has recently announced deals with Crusoe AI and, most recently, electric automaker Rivian to provide recycled batteries that can be used to power those companies’ facilities. The company declined to comment beyond the contents of Straubel’s email.
In his message, Straubel wrote that “parts of the company have expanded faster than needed to support the direction” of Redwood. As a result, he said Redwood is making cuts across multiple divisions, including the engineering and operations organizations, according to an employee who was granted anonymity to discuss the layoffs.
Techcrunch event
San Francisco, CA
|
October 13-15, 2026
“We are confident that we can deliver on our critical projects with a smaller team that is more focused,” he wrote. “We have successfully adapted to changes in the market that have bankrupted many of our competitors.”
Straubel went on to write that he is “more excited than ever with our path ahead as we build the most integrated and cost-effective critical materials and energy storage business in the world.”
“This is a self-sustaining business and will continue to make this company more valuable over time. We have the team and the technology to do what no other company can,” he wrote.
Workers who were laid off were told by Redwood’s chief HR officer that the layoffs were made “to sharpen our focus, our work and the size of our teams to support the direction Redwood is going in the future,” according to a copy of her email, which was viewed by TechCrunch.
Employees who were laid off are receiving severance and paid health benefits, according to Straubel’s email, as well as “career transition assistance.”
“I am grateful to the approximately 135 employees who we say goodbye to today — they’ve all contributed to building Redwood,” he wrote.
When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.#Exclusive #Redwood #Materials #lays #restructuring #chase #energy #storage #business #TechCrunchBatteries,battery recycling,electric vehicles,EVs,Exclusive,Redwood Materials")
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