A data-driven look at who is being attacked, how attack volumes are changing, and what modern enterprises can do to defend their infrastructure — powered by live Cloudflare Radar data.
Weekly L3/L4 DDoS attack volume relative to the annual peak — the last 12 weeks of data show a dramatic and sustained acceleration, with the most recent weeks hitting record highs.
By attack byte volume over the past 12 months, two sectors dominate: Information Technology & Services and Telecommunications together account for nearly three-quarters of all L3/L4 DDoS traffic.
Telecom's high share reflects its role as attack infrastructure — carriers own massive IP blocks that become attack targets and unwilling attack vectors simultaneously.
Over the past 12 months, three countries absorbed 85% of all L3/L4 DDoS attack bytes — reflecting both the concentration of critical internet infrastructure and geopolitical tensions.
Any organization with infrastructure in APAC, the US, or major European markets is operating in high-risk territory. Geographic diversification of infrastructure does not reduce risk — it requires protection at every location.
Cloudflare advertises your IP prefixes via BGP globally. All traffic — including attack traffic — enters Cloudflare's 405+ Tbps network before it ever reaches your ISP link.
Automated DDoS systems detect new attack patterns within seconds and deploy mitigation rules across all 330+ global data centers simultaneously.
Scrubbed, legitimate traffic is forwarded to your data center over encrypted GRE or IPsec tunnels. Your infrastructure only ever sees clean traffic.
Enforce firewall rules at the global edge using Wireshark-inspired syntax. IDS signatures detect ransomware, lateral movement, and data exfiltration automatically.
| Capability | Hardware | Magic Transit |
|---|---|---|
| Max DDoS Capacity | ~25 Gbps | 405+ Tbps |
| Upstream of ISP Link | ✗ No | ✓ Yes |
| Always-On Protection | ✗ Manual | ✓ Automatic |
| Threat Intel Updates | Manual patches | Real-time, auto |
| High Availability | Buy 2× hardware | Built-in anycast |
| Latency Impact | Negative (bottleneck) | None to negative |
| Cost Model | High CapEx | Predictable OpEx |
| Zero Trust Integration | ✗ Separate stack | ✓ Native |
The data is clear — attack volumes are at record highs and accelerating. Hardware-based defenses were designed for a different era. Magic Transit stops attacks at the source, at Cloudflare scale, before they reach your network.