What Is DDoS Protection and Does Your Business Need It?
DDoS protection helps detect and mitigate traffic intended to overwhelm an internet service. Learn what it covers and how to assess the need.
A distributed denial-of-service attack uses traffic from many sources to exhaust connectivity or service capacity. DDoS protection aims to detect abnormal traffic and keep legitimate access available, but its design and limits need to match the service being protected.
Availability is the target
DDoS attacks differ from attempts to steal a password or exploit an application. Their immediate purpose is to make a service unavailable. Volumetric floods can fill a circuit, while protocol and application attacks target specific resources. Controls are therefore layered.
How network mitigation works
Network telemetry and thresholds identify suspicious patterns. Traffic may be filtered or diverted to a scrubbing platform so unwanted packets are discarded before clean traffic continues. Effective mitigation must operate upstream of a saturated customer circuit.
What it does not replace
DDoS mitigation does not replace secure application code, identity controls, patching, a firewall or incident response. It also cannot guarantee that every application-layer attack is harmless. Confirm the attack types, traffic paths and addresses covered by any Active Network Protection service.
Who should assess the risk?
Consider the cost of internet or service unavailability, whether public IP services are exposed, previous attacks, contractual obligations and how quickly connectivity could be restored. Ecommerce, hosted platforms, voice services and organisations with a visible public profile may have higher exposure.
Capacity and routing context
Protection depends on knowing the relevant prefixes, routes and upstream capacity. Organisations using business IP transit should establish how detection and mitigation interact with BGP announcements and normal routing.
Questions for a provider
- Which addresses, protocols and attack types are monitored?
- Is mitigation automatic, manual or both?
- Where is unwanted traffic removed?
- How are alerts, reports and escalation handled?
- What limitations and customer actions apply?
Prepare for an incident
Record protected services, technical contacts and decision authority. Test the notification route and keep application logs available. After an event, review traffic evidence and tune controls without blocking legitimate customers.
Discuss your public services and availability risk with our network team before selecting proportionate DDoS protection.
Build an evidence-led response
During an incident, preserve timestamps, affected addresses, graphs and application symptoms. Confirm whether the access circuit is saturated or the application itself is exhausted. This distinction determines whether upstream filtering, local policy or application scaling is the appropriate response.
After mitigation, compare legitimate and rejected traffic, document any customer impact and review thresholds. A recurring test and review process is more useful than purchasing a protection label and assuming it will cover every form of service interruption.
