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E-Business

Hackers Shut Down S/Africa’s Economic Hub, Demand Ransom in Bitcoins

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Hackers have shut down the cyber network of Johannesburg City Council, targeting computers of Local Government employees in South Africa’s economic hub, city officials on Friday said.

 

The hackers allegedly demanded ransom in the form of bitcoins in exchange for reactivating internet and email links to the city’s billing systems, local media reported.

 

The City of Johannesburg said it could not confirm the authenticity of the ransom demand and that it’s forensic and IT units were investigating the attack.

 

Johannesburg is home to five million residents and contributes 16 per cent to the country’s total 326 billion dollars national economy.

 

Officials said the attack on Thursday afternoon via employees’ computers had affected its call centres, website and online electronic platforms.

 

“You’re sitting as an employee and then boom, a message appears on your computer screen and it turns blue. You try to reboot, switch off and nothing.

 

“Some messages demand money, other threatened to attack employees (physically),” City of Johannesburg spokesman Ntahtise Modingwane said.

 

“We picked it up quickly and shut the whole system down,” Modingwane said.

 

“We’re working around the clock and the system should be back up during the weekend.”

 

The city’s electricity distribution company City Power suffered a similar attack in July when a ransomware virus planted in its cyber systems by unknown hackers hit its pre-paid customers, according to local news website News24.

 

United Kingdom-based tech firm Mimecast said in a report there was 19 per cent increase in ransomware attacks targeting South African companies between 2018 and 2019.

 

Ransomware is a type of malware that encrypts a victim’s files, with the hacker typically demanding payment to restore access.

 


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E-Business

NDPC Probes Suspected Data Breach in Examination Centres

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Data Breach
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Nigeria Data Protection Commission (NDPC) has launched an investigation into allegations that the confidentiality and integrity of candidates’ personal data may have been compromised by hackers.

NDPC Probes Suspected Data Breach in Examination Centres

The Commission initiated the inquiry following concerns over possible data breaches during examinations.

Preliminary findings indicate that several examination centres may not have implemented adequate technical and organizational measures to safeguard candidates’ personal information, as required under data protection regulations.

Although the incident reportedly affected 379, 997 candidates, the NDPC’s investigation is poised to cover a systemic audit of data processing and third parties.

It will be recalled that JAMB recently admitted that a technical error on its platform affected a total of 379,997 candidates in 157 examination centres across Lagos and the South-East.

Further investigation led to the arrest of at least 20 suspects who are currently in the custody of the Department of State Services and the Nigerian Police Force.

 

 

 


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Nigeria Among Hotspots as Kaspersky Warns of Rising Ransomware Threat in Africa

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Cyber security firm, Kaspersky, has once again warned that sophisticated cybercriminals increasingly target Africa as ransomware and advanced persistent threats (APTs) escalate across the region.

Speaking at the company’s annual Cyber Security Weekend for the Middle East, Turkiye and Africa (META) region, the cybersecurity firm’s Global Research and Analysis Team highlighted growing digital threats affecting African nations.

Kenya, Nigeria, and South Africa emerged as hotspots, with Kenya recording one of the highest web threat incident rates at 20.1% in first quarter 2025.

“While ransomware is less prevalent in Africa due to lower levels of digitisation and economic constraints, countries like South Africa and Nigeria are seeing a sharp rise in attacks,” said Sergey Lozhkin, head of META and APAC regions at Kaspersky.

Kaspersky noted a 0.01 percentage point increase in African ransomware cases year-on-year, reaching 0.41%, still below global and Middle Eastern averages, but a troubling sign for the continent’s emerging digital infrastructure.

Experts warned that attackers are refining their tactics, shifting focus to unconventional entry points like IoT devices, smart appliances, and misconfigured hardware.

“As these economies expand digitally, sectors such as manufacturing, finance and government are becoming key targets,” said Lozhkin

The cyber-crime landscape is evolving quickly, fuelled by AI tools and dark web access to large language models, which enable less skilled actors to launch convincing phishing and malware campaigns.

Groups like FunkSec, which uses AI-generated code and a low-cost ransom model, are redefining ransomware operations.

“African organisations face the dual challenge of expanding digital footprints and limited cybersecurity awareness. This makes layered defense strategies, including network segmentation, real-time monitoring and regular staff training, essential,” stated Lozhkin

Kaspersky continues to monitor 25 active APT groups in the META region, including SideWinder and MuddyWater, some of which are known to target African institutions.

To bolster defenses, the firm recommends using tools such as its free Anti-Ransomware Tool for Business and the Kaspersky Next suite for threat visibility and response.

 


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Nigeria Launches Cybercrime Team with Commonwealth, UK Support

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Nigeria recently launched a new joint case team to step up its response to cybercrimes that affect people and businesses at home and abroad.

Nigeria Launches Cybercrime Team with Commonwealth, UK Support

The ‘Joint Case Team on Cybercrime’ brings together Nigeria’s key justice and security agencies to work as one, making it easier to detect, investigate, and prosecute digital offences.

It is supported by the UK National Crime Agency, the UK Foreign, Commonwealth and Development Office, and the Commonwealth Secretariat, as part of a wider effort to promote international cooperation on cybercrime.

Speaking at the launch in Abuja, Prince Lateef Fagbemi SAN, minister of justice and attorney general of the federation described the initiative as “a bold and transformative stride in Nigeria’s justice system.”

He said that although Nigeria has a national legal framework to address cyber offences, laws alone are not enough.

Nigeria is among the countries most affected by cybercrime around the world, with increasing financial losses.


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