Businesses increasingly depend on digital platforms to process payments, serve customers, manage operations and communicate with suppliers. As this reliance grows, the ability to keep networks and online services available has become a central business priority.
A new announcement from network security and observability company NETSCOUT, published on 14 October 2026, highlights a significant development in the cyberthreat landscape: high-capacity distributed denial-of-service (DDoS) attacks increased by 1,286% during the first half of 2026, according to the company’s threat-intelligence research.
The announcement places network resilience firmly on the technology agenda for organisations operating digital platforms, telecommunications infrastructure and internet-facing services.
Understanding the DDoS threat
A distributed denial-of-service attack attempts to overwhelm a website, application, network or other online service with excessive traffic or requests. The objective is to make the targeted service slow, unreliable or unavailable to legitimate users.
Attack traffic may originate from large numbers of compromised devices, servers or other connected systems. Coordinated traffic can place pressure on network capacity and security infrastructure, making it difficult to distinguish malicious activity from legitimate demand.
High-capacity attacks are particularly challenging because of the volume of traffic involved. Depending on the target and attack characteristics, the consequences can include service disruption, customer frustration, lost transactions and increased pressure on IT and security teams.
The increase reported by NETSCOUT concerns high-capacity DDoS activity in its first-half 2026 research. It should not automatically be interpreted as a 1,286% increase in all cyberattacks, nor as a South Africa-specific figure. Organisations should consult the company’s full report for the precise measurement, comparison period and methodology.
Why network availability matters to business
For many organisations, a disruption to digital services can quickly become an operational and commercial problem.
An online retailer may be unable to process orders. A financial services provider could experience interruptions affecting customer access. Telecommunications operators may need to protect network performance, while logistics companies rely on connected systems to coordinate deliveries and track shipments.
Public-facing digital platforms also have to maintain availability during periods of high demand, when legitimate traffic can increase significantly.
The financial impact of a DDoS incident depends on its duration, the systems affected, the organisation’s ability to switch to alternative infrastructure and the importance of the disrupted service.
Even where a business restores service quickly, incident investigation and recovery can consume valuable staff time and require additional technical resources.
For this reason, network security should be treated as part of business continuity planning rather than solely as a technical issue managed by the IT department.
Why traditional defences may not be enough
Organisations typically use several layers of protection, including network filtering, firewalls, traffic monitoring and specialist DDoS mitigation services.
However, the effectiveness of these measures depends on the organisation’s infrastructure, the nature of the attack and how quickly the security team can identify and respond to unusual traffic.
Companies with limited visibility into their network activity may struggle to determine whether a sudden surge in traffic reflects a legitimate event, a technical fault or a deliberate attack.
Preparation can include identifying critical services, understanding normal network traffic patterns, testing response procedures and establishing arrangements with internet service providers and security partners.
Organisations should also consider whether their existing network capacity and protection arrangements are appropriate for their business requirements.
What South African organisations should consider
South African businesses across financial services, retail, healthcare, telecommunications, manufacturing and government increasingly depend on interconnected digital systems.
The practical priority is not to assume that every organisation faces the same level of exposure, but to assess which services are essential and what would happen if they became unavailable.
Technology leaders should review incident-response plans, identify dependencies on external hosting and connectivity providers, and confirm who is responsible for mitigating attacks.
Service-level agreements should clearly explain escalation procedures, support availability and responsibilities during a serious disruption.
Businesses using cloud services should also understand which security responsibilities belong to the provider and which remain with the customer. Moving systems to the cloud does not remove the need for risk management or operational planning.
Smaller organisations can begin with straightforward measures: maintain an inventory of internet-facing systems, apply security updates, use appropriate network protection and ensure that staff know how to report suspicious activity.
Moving towards proactive resilience
A resilient network strategy combines prevention, detection, response and recovery.
Monitoring tools can help technical teams identify unusual traffic patterns, while documented response procedures support faster decision-making during an incident. Regular testing can expose weaknesses before they affect customers.
Organisations should also consider how they will communicate with customers and employees if a critical digital service becomes unavailable. Clear communication can reduce confusion while technical teams work to restore normal operations.
The NETSCOUT announcement provides a timely reminder that network threats continue to evolve and that high-capacity attacks deserve attention from business and technology leadership.
The reported increase is an important signal, but the full report is needed to understand the detailed attack patterns and measurement behind the headline figure.
For businesses, the central question is whether their current security arrangements can protect the availability of the services on which customers, employees and partners depend.
Read More: https://www.netscout.com/news
