Telecom
Hackers Could Decrypt Your GSM Phone Call

Researchers have discovered a flaw in the GSM standard used by AT&T and T-Mobile that would allow hackers to listen in.
Researchers from BlackBerry at DefCon security conference in Las Vegas, USA, presented an attack that can intercept GSM calls as they’re transmitted over the air and decrypt them to listen back to what was said.
And the vulnerability has been around for decades.
Most mobile calls around the world are made over the Global System for Mobile Communications standard; in the US, GSM underpins any call made over AT&T or T-Mobile’s network.
Regular GSM calls aren’t fully end-to-end encrypted for maximum protection, but they are encrypted at many steps along their path, so random people can’t just tune into phone calls over the air like radio stations.
The researchers found, though, that they can target the encryption algorithms used to protect calls and listen in on basically anything.
“GSM is a well documented and analyzed standard, but it’s an aging standard and it’s had a pretty typical cybersecurity journey,” says Campbell Murray, the global head of delivery for BlackBerry Cybersecurity.
“The weaknesses we found are in any GSM implementation up to 5G. Regardless of which GSM implementation you’re using there is a flaw historically created and engineered that you’re exposing.”
The problem is in the encryption key exchange that establishes a secure connection between a phone and a nearby cell tower every time you initiate a call.
This exchange gives both your device and the tower the keys to unlock the data that is about to be encrypted. In analyzing this interaction, the researchers realized that the way the GSM documentation is written, there are flaws in the error control mechanisms governing how the keys are encoded. This makes the keys vulnerable to a cracking attack.
“It’s a really good example of how the intention is there to create security, but the security engineering process behind that implementation failed.”
As a result, a hacker could set up equipment to intercept call connections in a given area, capture the key exchanges between phones and cellular base stations, digitally record the calls in their unintelligible, encrypted form, crack the keys, and then use them to decrypt the calls.
The findings analyze two of GSM’s proprietary cryptographic algorithms that are widely used in call encryption—A5/1 and A5/3.
The researchers found that they can crack the keys in most implementations of A5/1 within about an hour. For A5/3 the attack is theoretically possible, but it would take many years to actually crack the keys.
“We spent a lot of time looking at the standards and reading the implementations and reverse engineering what the key exchange process looks like,” BlackBerry’s Murray said.
“You can see how people believed that this was a good solution. It’s a really good example of how the intention is there to create security, but the security engineering process behind that implementation failed.”
The researchers emphasize that because GSM is such an old and thoroughly analyzed standard, there are already other known attacks against it that are easier to carry out in practice, like using malicious base stations, often called stingrays, to intercept calls or track a cellphone’s location.
Additional research into the A5 family of ciphers over the years has turned up other flaws as well. And there are ways to configure the key exchange encryption that would make it more difficult for attackers to crack the keys. But Murray says that the theoretical risk always remains.
Short of totally overhauling the GSM encryption scheme, which seems unlikely, the documentation for implementing A5/1 and A5/3 could be revised to make key interception and cracking attacks even more impractical. The researchers say that they are in the early phases of discussing the work with the standards body GSMA.
The trade association said in a statement to WIRED that, “Details have not been submitted to the GSMA under our coordinated vulnerability (CVD) programme. When the technical details are known to the GSMA’s Fraud and Security Group we will be better placed to consider the implications and the necessary mitigation actions.”
Though it may not be that surprising at this point that GSM has security issues, it’s still the cellular protocol used by the vast majority of the world. And as long as it’s around, real call privacy issues remain, too.
Telecom
Mart Networks Rolls Out Tailored Cybersecurity Solution for Fintechs

Mart Networks, a leading cybersecurity distributor across Africa and the Middle East, has unveiled a specialized cybersecurity package tailored for fintech firms.
The solution, powered by Invinsense, Infopercept’s unified cybersecurity platform, aims to address the growing security needs of fintechs operating in highly regulated environments.
According to Moiz Maloo, Managing Director at Mart Networks, fintech companies face unique security challenges due to stringent regulatory requirements and increasing threats. “Most fintechs don’t have the luxury of multiple internal security teams or system integrators. With this focused offering, we’re providing an all-in-one platform with managed services built specifically for the fintech environment,” he said.
The offering integrates four key components: Invinsense XDR and Managed Detection & Response for real-time monitoring, Exposure Management for vulnerability detection, Security Compliance Management to support fintechs in meeting regulatory standards, and Cybersecurity Awareness Programs to empower teams against cyber threats.
Furthermore, the package includes deep application visibility, ensuring fintech-specific applications remain secure through Invinsense SIEM’s custom log ingestion capabilities. To reinforce protection, Infopercept’s engineering team will provide code-level fixes, patches, and infrastructure security enhancements.
With the rise of cloud-based fintech operations, the solution also incorporates full-stack cloud security, including API security, Cloud Infrastructure Entitlement Management (CIEM), and Application Security Posture Management (ASPM).
Mart Networks’ move underscores the growing importance of cybersecurity in Africa’s fintech sector, as financial services become increasingly digital and susceptible to evolving cyber threats.
Telecom
Equinix Expands Digital Footprint in Nigeria with Launch of LG2.3 Data Center

Equinix, Inc. the world’s digital infrastructure company™, has officially opened its latest data center expansion in Lagos. Called LG2.3, the facility will support Nigeria’s growing digital transformation efforts, providing state-of-the-art colocation and secure interconnection solutions which will empower businesses across the region.
It also signifies Equinix’s unwavering dedication to advancing Nigeria’s position in the global digital economy, reinforcing the company’s commitment to the region.
As part of the inauguration, Bruce Owen, President of EMEA at Equinix, along with other Equinix executives, led the ribbon-cutting ceremony at the newly expanded site. In addition to an official visit to the Governor of Lagos State, Equinix hosted an exclusive customer engagement event, bringing together key customers and partners from Nigeria’s business and technology sectors.
Attendees discussed shared successes and Equinix’s role in facilitating digital transformation, while also connecting directly with Bruce Owen for insights into how Equinix’s solutions drive innovation and business agility in the region.
Equinix executives also took part in a tree-planting ceremony, symbolising Equinix’s continued investment in sustainable initiatives across the globe and highlighting the company’s broader goal of reducing its carbon footprint while supporting greener practices across its operations worldwide.
Speaking about the expansion, Bruce Owen, President of EMEA at Equinix said “Nigeria is a crucial market for Equinix. Today’s opening is a clear demonstration of our continued commitments to invest and grow digital infrastructure that will benefit the many thousands of businesses in Nigeria and on the continent as a whole.
“I am deeply encouraged by the enthusiastic partnerships and innovations emerging from this dynamic region, which continue to inspire our commitment to Nigeria’s digital and sustainable future.”
Adding to this, Wole Abu, Managing Director of Equinix West Africa, highlighted the critical role of data centers in driving economic growth stating “Data centers continue to play a pivotal role in driving economic development in Nigeria, serving as critical infrastructure that supports digital transformation and economic growth.
“As governments and enterprises increasingly acknowledge their significance, global demand for data center capacity is poised to rise. While Africa’s demand for data solutions is still evolving compared to more mature markets, the continent is demonstrating strong potential for digital adoption and innovation.
“To meet this growing need, Equinix is actively advancing three major data center projects in Nigeria, with future expansion plans for Ghana, Côte d’Ivoire, and South Africa.”
Equinix remains steadfast in its mission to enable secure, scalable, and sustainable digital growth for economies across the world.
Telecom
African Women Hit Hardest as Mobile Internet Gender Gap Persists

African women remain among the most digitally excluded globally, with smartphone affordability and digital literacy among the key barriers. New data from the 2025 GSMA Mobile Gender Gap Report, launched recently, reveals a persistent global gender gap in mobile internet use across low- and middle-income countries (LMICs).
It further notes that literacy, digital skills, safety, and affordability of data also remain critical barriers. The report highlights that 885 million women across these regions still do not use mobile internet, with nearly 60% of them living in Sub-Saharan Africa and South Asia.
While mobile internet is the primary way women in LMICs access the internet, offering critical lifelines to health, education, and financial services, the pace of female adoption has stalled, leaving 235 million fewer women than men connected.
Claire Sibthorpe, head of digital inclusion at GSMA, highlighted that the gender gap had narrowed significantly between 2017 and 2020, but progress flatlined in recent years.
Although 2023 brought a slight improvement, restoring the gap to 15%, 2024 saw minimal change, with the gap settling at 14%.
The disparity is most severe in Sub-Saharan Africa, where women are 29% less likely than men to use mobile internet.
“It’s disheartening that progress in reducing the mobile internet gender gap has stalled. The digital divide is driven by deep-rooted socio-economic and cultural factors that disproportionately impact women,” said Sibthorpe.
GSMA projects that closing the gender gap by 2030 could add $1.3 trillion to GDP across LMICs and deliver $230 billion in revenue to the mobile industry.
The report, funded by the UK FCDO, Sida, and the Gates Foundation, stresses the urgent need for targeted investment and policy action to bridge the digital divide and ensure that no woman is left offline.
“The mobile internet gender gap is not going to close on its own. It is driven by deep-rooted social, economic, and cultural factors that disproportionately impact women,” said Sibthorpe.
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