E-Business
ESET Researchers Spot DoubleLocker ‘Innovative’ Android Ransomware

By peter oluka
ESET researchers have spotted the first-ever ransomware misusing Android accessibility services. On top of encrypting data, it also locks the device.
Detected by ESET products as Android/DoubleLocker.A, the ransomware is based on the foundations of a particular banking Trojan, known for misusing accessibility services of the Android operating system.
However, DoubleLocker doesn’t have the functions related to harvesting users’ banking credentials and wiping out their accounts. Instead, it has received two powerful tools for extorting money from its victims.
DoubleLocker can change the device’s PIN, preventing victims from accessing their devices, and also encrypts the data it finds in them – a combination that has not been seen previously in the Android ecosystem.
“Given its banking malware roots, DoubleLocker may well be turned into what could be called ransom-bankers. Two-stage malware that first tries to wipe your bank or PayPal account and subsequently locks your device and data to request a ransom… Speculation aside, we spotted a test version of such a ransom-banker in the wild as long ago as May, 2017,” comments Lukáš Štefanko, the ESET malware researcher who discovered DoubleLocker.
Distribution
DoubleLocker spreads in the very same way as its banking parent does. It is distributed mostly as a fake Adobe Flash Player through compromised websites.
Once launched, the app requests activation of the malware’s accessibility service, named “Google Play Service”. After the malware obtains the accessibility permissions, it uses them to activate device administrator rights and set itself as the default Home application, in both cases without the user’s consent.
“Setting itself as a default home app – a launcher – is a trick that improves the malware’s persistence. Whenever the user clicks on the home button, the ransomware gets activated and the device gets locked again. Thanks to using the accessibility service, the user doesn’t know that they launch malware by hitting Home,” explains Štefanko.
Locking Both Device And Data
DoubleLocker, once executed on the device, creates two reasons for the victims to pay.
First, it changes the device’s PIN, effectively blocking the victim from using it. The new PIN is set to a random value which the attackes neither store nor send anywhere, so it’s impossible for the user or a security expert to recover it. After the ransom is paid, the attacker can remotely reset the PIN and unlock the device.
Second, DoubleLocker encrypts all files from the device’s primary storage directory. It utilizes the AES encryption algorithm, appending the extension “.cryeye”. “The encryption is implemented properly, which means that, unfortunately, there is no way to recover the files without receiving the encryption key from the attackers,” says Štefanko.
The ransom has been set to 0.0130 BTC (approximately USD 54 at time of writing) and the message highlights that it must be paid within 24 hours. However, if the ransom is not paid, the data will remain encrypted and will not be deleted.
How To Get Rid Of It?
In the ransom note, the user is warned against removing or otherwise blocking DoubleLocker: “Without [the software], you will never be able to get your original files back”.
To prevent unwanted removal of the “software”, the crooks even recommend disabling the user’s antivirus software.
“Such advice is irrelevant: all those with a quality security solution installed on their devices are safe from DoubleLocker,” explains Štefanko.
The only viable option to clean the device of the DoubleLocker ransomware is via a factory reset.
For rooted devices, however, there is a method to get past the PIN lock without a factory reset. For the method to work, the device needed to be in the debugging mode before the ransomware got activated.
If this condition is met, then the user can connect to the device by ADB and remove the system file where the PIN is stored by Android. This operation unlocks the screen so that the user can access their device. Then, working in safe mode, the user can deactivate device administrator rights for the malware and uninstall it. In some cases, a device reboot is needed.
As for the data stored on the device, there is no way to recover it, as mentioned earlier.
“DoubleLocker serves as just another reason for mobile users to have a quality security solution installed, and to back up their data on a regular basis,” concludes Štefanko.
E-Business
Galaxy Backbone, Rural Electrification Agency Commit to Deepening Digital and Energy Access Across Nigeria

In a major step towards deepening Nigeria’s digital and energy infrastructure, Galaxy Backbone Limited (GBB) and the Rural Electrification Agency (REA) have signed a strategic Memorandum of Understanding (MoU) at a brief but impactful ceremony held in Abuja.
The MoU signals a collaborative effort between both agencies to enhance Nigeria’s digital transformation agenda by integrating reliable energy solutions with cutting-edge ICT infrastructure, especially in higher institutions, Government institutions, underserved and rural communities across the country.
Speaking at the event, the Managing Director/CEO of Galaxy Backbone, Professor Ibrahim A. Adeyanju, described the partnership as “a landmark moment in Nigeria’s journey towards a digitally empowered, sustainably powered, and inclusively connected nation.”
“This partnership exemplifies what is possible when two visionary government institutions come together, united by shared goals and driven by the desire to improve the lives of Nigerians everywhere,” he said.
Professor Adeyanju emphasized that while Galaxy Backbone’s core mandate is to provide secure digital infrastructure that powers government operations, reliable and sustainable energy particularly in rural areas is essential to fully actualize digital transformation.
Major highlights of the MoU include:
- Solar electrification of some of GBB’s Metro Fibre sites in Abuja by the REA.
- Powering Hostels of Higher Institutions across the country through the Fibre to Hostel Project being driven by the Federal Ministry of Communications Innovation and Digital Economy (FMCIDE).
- Support for the rollout of the 774 Local Government Digitization Initiative, beginning with six pilot Local Government Areas.
- Provision of LANs, access points, cloud services, colocation infrastructure, and temporary connectivity to enhance REA’s operational facilities nationwide.
The Managing Director of the Rural Electrification Agency Mr Abba Aliyu, in his remarks, expressed optimism that this collaboration will further bridge the digital and energy divide across Nigeria. He noted that by combining REA’s achievements in expanding energy access with GBB’s robust ICT backbone, both agencies are poised to create lasting impact across governance, education, healthcare, and entrepreneurship.
This partnership is also in direct alignment with the Renewed Hope Digital Transformation Agenda of President Bola Ahmed Tinubu, GCFR, which envisions an inclusive digital economy powered by innovation and sustainable energy.
The ceremony was attended by top management from both organizations as well as members of the media.
With today’s signing, Galaxy Backbone and the Rural Electrification Agency have set the tone for stronger, smarter, and more inclusive public service delivery powered by strategic inter-agency collaboration.
E-Business
NIMC Says NIN Services Back Online

National Identity Management Commission (NIMC) has announced the restoration of its National Identification Number (NIN) verification services nationwide.
This, according to the commission, follows the completion of a system maintenance exercise.
In a statement issued on Friday, the NIMC confirmed that all previously disrupted services have resumed.
“NIMC wishes to inform the general public that the recent technical maintenance has been completed and all services have been restored,” the statement read.
The NIMC urged Nigerians seeking to enroll for NIN to visit the its official website to locate the nearest enrollment centers.
The agency also encouraged individuals to make use of its self-service portal for tasks such as data modification, including name changes.
To further ease the verification process, the Commission recommended downloading the NIMC NameAuth app (oath.app) from the Google Play Store or Apple App Store for quick and secure NIN authentication.
NIMC expressed appreciation for the public’s patience during the service disruption, which had impacted banks, telecom providers, and government agencies that rely on NIN verification for their operations.
E-Business
Report Reveals African Organizations Dangerously Overestimating Cyber defences

Many businesses are overestimating their defence against cyber attacks, which creates a significant human risk blind spot. A new KnowBe4 report exposes a worrying disconnect between what leaders think about their cyber security readiness and what employees experience.
According to the KnowBe4 Africa Human Risk Management Report 2025, based on insights from cyber security decision-makers across 30 African countries, despite high awareness, a critical gap exists in turning that awareness into actual readiness and resilient behaviour.
Key findings from the KnowBe4 Africa Human Risk Management Report 2025:
Confidence vs awareness: While cyber security awareness is high, leaders express uncertainty about their workforce’s ability to act on that awareness. Many feel employees may overestimate their capabilities in recognising, reporting and mitigating threats.
The need for adaptive and personalised security awareness training: Many companies fail to personalise security awareness training to specific roles or risk exposures.
Widespread BYOD usage: A large percentage of employees (between 41% and 80%) use their personal devices for work.
AI policy development is lagging: Many companies (46%) are still in the process of developing policies for using AI tools in the workplace.
Regional variation: Southern Africa trains more, East Africa governs AI better and West/Central Africa sees the most human-related security incidents.
This gap is significant because Africa has become an attractive target to cyber criminals, especially those that launch AI-powered attacks. A LexisNexis Risk Solutions study found 60% of South African organisations have seen an increase in AI-facilitated financial crime – above the 56% global average.
Kehinde Popoola, regional manager and key representative for West and East Africa at Rubrik, said digital transformation is gaining momentum in Africa and companies are more exposed to cyber risk. The Rubrik executive adds that amid an increase in threats, it is crucial that organisations adopt an assumed breach mindset.
The KnowBe4 research shows that cyber security preparedness and the actual structures required to support secure behaviour seem misaligned.
The report highlights that just 10% of cyber security leaders are fully confident that staff would report a phishing attack or other cyber threat, despite rating employee security awareness of cyber threats at four out of five or higher.
There is also a significant perception gap between decision-makers and general employees in Africa regarding security awareness training, with 68% of leaders believing that training is tailored to roles, compared to only a third of employees feeling adequately trained.
KnowBe4 asserts that many organisations only conduct annual or biannual training that is too generic to effectively change behaviour, contributing to uncertainty about its effectiveness.
According to another report, the KnowBe4 African Cybersecurity and Awareness Report 2025, which focuses on end-user based responses, only 43% of African respondents felt confident in their ability to recognise a cyber threat, and just one in three believed their security awareness training was adequately tailored to their role. This comparison suggests the development of a dangerous perception gap in many organisations.
“There’s a disconnect here – between what leaders think is happening and what employees are actually experiencing,” says Anna Collard, SVP content strategy and evangelist at KnowBe4 Africa. “The data shows that without procedural and cultural follow-through, awareness simply doesn’t translate into readiness.”
“The continent’s cyber security posture may be more confident than it is truly resilient,” Collard adds.
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