Telecom
ESET Warns of Rising Online Scam Threat Amid EFCC’s Major Fraud Bust

ESET, a global leader in digital security, has provided insights on the rising threat of online scams.
In a significant operation earlier in the week, Nigeria’s anti-graft agency, the Economic and Financial Crimes Commission (EFCC), conducted a large-scale raid on the Big Leaf Building in Lagos, identified as a key hub for fraudulent activities.
According to EFCC’s account, 792 individuals were arrested during the operation, including 148 Chinese and 40 Filipino nationals, all suspected of involvement in a global fraud network.
The suspects are alleged to have operated a complex scam ring that deceived victims through fraudulent romance offers and cryptocurrency investment schemes.
The Big Leaf Building served as the central location for a call center operation, primarily targeting individuals from the Americas and Europe.
The Nigerian accomplices-initiated contact with victims, while foreign nationals managed the deceptive schemes, coercing victims into transferring funds.
During the raid, the EFCC seized computers, mobile phones, and vehicles. Authorities are now collaborating with international law enforcement agencies to investigate potential connections to larger organized crime syndicates.
This operation represents a significant step in combatting the escalating threat of online fraud and transnational criminal activity.
In a media briefing held on Monday, December 16th, 2024, at the EFCC Lagos office, Wilson Uwujaren, the director of Public Affairs, revealed that Nigerian accomplices were recruited to target victims through phishing campaigns, utilizing platforms such as WhatsApp, Instagram, and Telegram.
Reacting to the development, Mr. Olufemi Ake, ESET’s managing director for West Africa, emphasized that fraudsters often use dating sites and social media to assume false identities, making it increasingly difficult to detect their deceptive tactics.
These criminals frequently employ psychological manipulation and advanced artificial intelligence to build trust with their victims, further complicating efforts to catch them.
Ake also noted that many of the Nigerian suspects involved in these fraudulent activities were unaware of the true identity of their employers, as they did not receive official letters of appointment or payments from corporate accounts.
This, he argued, highlights the need for employees to regularly vet their employers’ operations to avoid being ensnared in fraudulent schemes.
“As online criminals become more skilled at exploiting digital platforms, Ake advised individuals to remain cautious and informed to protect themselves from falling prey to increasingly sophisticated fraud tactics”, he said.
He recommended verifying identities through trusted channels, being skeptical of unsolicited investment opportunities, especially those involving cryptocurrencies, and ensuring that their devices are equipped with up-to-date cybersecurity applications. “If it seems too good to be true, it probably is,” Olufemi Ake concluded.
Telecom
Mafab Communications Has Launched 5G Services- Findings

Contrary to media some media reports yesterday, Mafab Communications, one of the companies granted Fifth Generation (5G) licences by Nigerian Communications Commission (NCC) has actually rolled out its 5G network services in Abuja since 2023.
According to Nigeria CommunicationsWeek findings, the rollout came almost a year since the telco paid $273.6 million for spectrum in the 3.5GHz band as part of a government auction.
Mafab Communications, has, not however kept to its promise to to strengthen its commercial operations by March 2025 as its services has remained skeletal since the media launch.
It said that it will roll out its high-speed 5G services through 102 operational sites strategically located in Kano and Abuja but that did not happen as at close of March.
An insider in the company, however assured that starting this month, subscribers with Mafab’s 5G routers will be able to enjoy ultra-fast connectivity on its expanding network.
This move aims to capture a wider share of Nigeria’s growing demand for 5G services.
Dr Musbahu Bashir, founder and chairman, Mafab Communications, said during the rollout launch that the telco will offer both voice and data services nationwide.
Additionally, Nigerian cities like Lagos, Port Harcourt, Enugu, Kano, and Kaduna have been listed for the deployment of 5G services while those not on the list will have services deployed at a later stage.
“The rollout of Mafab Communications 5G network is the beginning of immense opportunities for the country as it represents Nigeria’s capabilities and infinite possibilities,” he said.
“The prospect of increased job opportunities as a consequence of the value-chain benefits the technology will generate and offer is the dream we have all gathered here to launch today,” Bashir continued.
Telecom
Samsung Introduces Local Nigerian Languages to Galaxy Devices, Celebrating Cultural Diversity

Samsung Electronics has taken a bold step in enhancing user experience and inclusivity by introducing Hausa, Igbo, and Yoruba as official language options on selected Samsung Galaxy devices.

L-R: Stephen Okwara, Head, Product Management, Mobile Experience, Samsung Electronics West Africa; Joy Tim-Ayoola, Group Head, Mobile Experience, Samsung Electronics West Africa; Tae Sun Lee, Samsung Electronics West Africa CEO; Oge Maduagwu, Head of Marketing Samsung Electronics West Africa, and Nathan Lee, Regional Business Lead, Mobile Experience, Samsung Electronics West Africa, at the launch of Nigeria local language integration on Galaxy S25, A56, A36, and A26 devices, on April 03, 2025.
The feature, which is now available on the Galaxy S25, A56, A36, and A26 devices, reaffirms Samsung’s commitment to delivering innovative technology that speaks the language of its users.
With this groundbreaking update, Samsung users across Nigeria can now navigate their smartphones in their preferred local language, making technology more accessible, while also upholding our cultural heritage.
A Celebration of Culture and Technology
To mark the launch, Samsung hosted a cultural-themed press briefing featuring traditional music, local cuisine, and a showcase of the new language feature. Employees and guests attended in traditional Yoruba, Igbo, and Hausa attires, celebrating Nigeria’s rich cultural diversity.
Samsung also announced plans to expand local language support to more devices in the near future, reinforcing its dedication to making technology more inclusive for African users.
Empowering Users Through Language
The integration of Hausa, Igbo and Yoruba on Samsung devices reflects the brand’s mission to bridge the digital gap and enhance user engagement. Speaking at the press conference, Oge Maduagwu, Head of Marketing, Samsung Electronics West Africa, said, “At Samsung, we understand that technology is most powerful when it is accessible to all.
“By incorporating our local Nigerian languages, we are making our devices more intuitive and relatable, ensuring that millions of Nigerians can interact with their smartphones in the language they love and understand best”.
Seamless Language Transition on Galaxy Devices
Stephen Okwara, Head of Product Management, Samsung Electronics West Africa added, “The new local language feature is designed to deliver a seamless user experience, allowing customers to easily switch between languages. Users can activate Hausa, Igbo, or Yoruba on the Galaxy S25, A26, A36, and A56 by navigating to: Settings > Language & Input > Select Language
“This update enhances smartphone usability, particularly for those who prefer their native language over English, ensuring greater digital inclusivity, enhancing digital literacy and encouraging more users to engage with technology in their native tongues” He concluded.
Availability
Customers can visit all Samsung Experience Stores or authorized retailers in Nigeria to learn more and experience the feature firsthand.
Telecom
Sophos Reveals Key Findings: 56% of Cyberattacks Exploit Valid Credentials

Sophos, a global leader of innovative security solutions for defeating cyberattacks, has released the 2025 Sophos Active Adversary Report, which details attacker behaviour and techniques from over 400 Managed Detection and Response (MDR) and Incident Response (IR) cases in 2024.
The report found that the primary way attackers gained initial access to networks (56% of all cases across MDR and IR) was by exploiting external remote services, which includes edge devices such as firewalls and VPNs, by leveraging valid accounts.
The combination of external remote services and valid accounts aligns with the top root causes of attacks. For the second year in row, compromised credentials were the number one root cause of attacks (41% of cases). This was followed by exploited vulnerabilities (21.79%) and brute force attacks (21.07%).
Understanding The Speed of Attacks
When analyzing MDR and IR investigations, the Sophos X-Ops team looked specifically at ransomware, data exfiltration, and data extortion cases to identify how fast attackers progressed through the stages of an attack within an organization. In those three types of cases, the median time between the start of an attack and exfiltration was only 72.98 hours (3.04 days). Furthermore, there was only a median of 2.7 hours from exfiltration to attack detection.
“Passive security is no longer enough. While prevention is essential, rapid response is critical. Organizations must actively monitor networks and act swiftly against observed telemetry. Coordinated attacks by motivated adversaries require a coordinated defense. For many organizations, that means combining business-specific knowledge with expert-led detection and response. Our report confirms that organizations with proactive monitoring detect attacks faster and experience better outcomes,” said John Shier, field CISO.
Other Key Findings from the 2025 Sophos Active Adversary Report:
· Attackers Can Take Control of a System in Just 11 Hours: The median time between attackers’ initial action and their first (often successful) attempt to breach Active Directory (AD) – arguably one of the most important assets in any Windows network – was just 11 hours. If successful, attackers can more easily take control of the organization.
· Top Ransomware Groups in Sophos Cases: Akira was the most frequently encountered ransomware group in 2024, followed by Fog and LockBit (despite a multi-government takedown of LockBit earlier in the year).
· Dwell Time is Down to Just 2 Days: Overall, dwell time – the time from the start of an attack to when it is detected – decreased from 4 days to just 2 in 2024, largely due to the addition of MDR cases to the dataset.
· Dwell Time in IR Cases: Dwell time remained stable at 4 days for ransomware attacks and 11.5 days for non-ransomware cases.
· Dwell Time in MDR Cases: In MDR investigations, dwell time was only 3 days for ransomware cases and just 1 day for non-ransomware cases, suggesting MDR teams are able to more quickly detect and respond to attacks.
Ransomware Groups Work Overnight: In 2024, 83% of ransomware binaries were dropped outside of the targets’ local business hours.
· Remote Desktop Protocol Continues to Dominate: RDP was involved in 84% of MDR/IR cases, making it the most frequently abused Microsoft tool.
To shore up their defenses, Sophos recommends that companies do the following:
· Close exposed RDP ports
· Use phishing-resistant multifactor authentication (MFA) wherever possible
· Patch vulnerable systems in a timely manner, with a particular focus on internet-facing devices and services
· Deploy EDR or MDR and ensure it is proactively monitored 24/7
· Establish a comprehensive incident response plan and test it regularly through simulations or tabletop exercises
Read the full It Takes Two: The 2025 Sophos Active Adversary Report on Sophos.com.
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