DDoS Protection: The ROI of Availability and Uptime
Distributed Denial of Service attacks remain one of the most common and disruptive cyber threats. While DDoS attacks do not typically result in data breaches, they cause significant financial damage through downtime, lost revenue, and recovery costs. For organisations that depend on online availability — e-commerce, SaaS, financial services, healthcare portals — DDoS protection is a critical investment.
The Financial Impact of Downtime
Industry research estimates that the average cost of IT downtime ranges from $5,600 to $9,000 per minute, depending on the organisation's size and industry. For an e-commerce platform processing $50 million in annual online revenue, each hour of downtime represents approximately $5,700 in lost sales — not including the longer-term impact on customer trust and search engine rankings.
DDoS attacks have grown in both frequency and sophistication. Modern attacks combine volumetric flooding with application-layer techniques, making them harder to mitigate with simple traffic filtering. Attack durations range from minutes to days, with multi-vector campaigns designed to overwhelm different layers of defence sequentially.
Types of DDoS Protection
- Cloud-based scrubbing: Traffic is routed through a cloud provider's scrubbing centres, which filter malicious traffic before it reaches your infrastructure. This is the most common approach for organisations without dedicated DDoS mitigation infrastructure.
- CDN-based protection: Content delivery networks absorb volumetric attacks by distributing traffic across a global network of edge servers. Effective for web applications but may not protect non-web services.
- On-premises appliances: Hardware-based solutions deployed at the network edge. Useful for organisations with specific latency requirements or that need to protect non-web protocols, but limited by the capacity of the internet connection.
- Hybrid approaches: Combining on-premises and cloud-based protection provides defence against both small, fast attacks (handled on-premises with low latency) and large volumetric attacks (absorbed by cloud scrubbing capacity).
Calculating DDoS Protection ROI
The ROI calculation for DDoS protection is relatively straightforward:
- Estimate your hourly cost of downtime (lost revenue + productivity + recovery costs)
- Estimate the frequency and duration of DDoS attacks you face (or would face without protection)
- Calculate Annual Loss Expectancy: (attacks per year) × (average hours of downtime) × (hourly cost)
- Compare against the annual cost of DDoS protection (typically $30,000-$200,000 depending on bandwidth and service level)
For most organisations with significant online revenue, DDoS protection delivers strong ROI. Even organisations that have not yet experienced an attack should consider the probability: industry surveys indicate that over 50% of organisations experience at least one DDoS attack per year. The question is when, not if.