Ransomware attacks targeting businesses in sub-Saharan Africa doubled in the first three quarters of 2025 compared with the same period in 2024, according to Interpol's African Cyberthreat Assessment published in October 2025. The report, which draws on incident data from member country law enforcement agencies and cybersecurity information-sharing networks across the continent, identifies a structural shift in the threat landscape in which organised criminal groups that previously concentrated their ransomware campaigns on North American and European targets have increasingly redirected their activity towards African businesses perceived as comparatively less well-defended.
The report identifies three sectors as facing elevated risk. Financial services institutions, including banks, microfinance providers, and fintech companies, are targeted because of the combination of valuable customer data and the operational disruption that a system outage causes in an industry where uptime is a regulatory and reputational requirement. Logistics and supply chain companies are targeted because they hold data on cargo movements and client shipments that has commercial value and because their operational dependency on digital systems makes the threat of disruption credible. Healthcare institutions are targeted both for patient data and for the leverage that service disruption creates in a context where clinical operations cannot be suspended without consequence.
The attack vectors identified as most prevalent in the African context are phishing emails that deliver credential-harvesting payloads, exploitation of unpatched software vulnerabilities in internet-facing systems, and abuse of remote desktop protocol credentials that were set up during the pandemic expansion of remote working and never properly secured. These are not sophisticated zero-day exploits. They are well-understood attack methods that exploit gaps in basic security hygiene that remain common across many African businesses.
The Interpol report emphasises that the investment required to defend against the most common ransomware attack methods is not proportionate to the scale of organisations being targeted. Implementing multi-factor authentication on all remote access systems, maintaining a disciplined software patching schedule, deploying endpoint detection software on all devices, and running regular staff phishing awareness training are collectively sufficient to neutralise the majority of the attack vectors documented in the report. None of those measures requires exceptional capital outlay.
Interpol's recommendation to African businesses is to treat cybersecurity investment as an operational continuity cost rather than an IT department issue. Ransomware attacks that succeed are not just technically expensive to remediate. The reputational, regulatory, and commercial consequences of a disclosed breach are material and long-lasting. The asymmetry between the cost of prevention and the cost of a successful attack has never been more pronounced, and the frequency of incidents documented in the 2025 report makes the risk quantifiable rather than hypothetical for businesses operating in the region.