Cloudflare has mitigated the biggest distributed denial of service (DDoS) attack on record. Here's what you need to know.

The largest distributed denial-of-service (DDoS) attack to date peaked at 5.6 terabits per second and came from a Mirai-based botnet with 13,000 compromised devices.

Cloudflare blocked a 5.6 Tbps DDoS attack from a Mirai botnet, with 1+ Tbps attacks surging 1,885% in Q4 2024.

Cloudflare says the attack against an East Asian ISP came from 13,000 devices infected with a variant of the notorious Mirai malware.

We’re only three weeks into 2025, and it’s already shaping up to be the year of Internet of Things-driven DDoSes. Reports are rolling in of threat actors infecting thousands of home and office routers,