Adversaries are swapping compromised IP addresses faster than static reputation lists can update, creating a rotation economy that lets them bypass traditional IP‑reputation filters.

The constant churn erodes the effectiveness of perimeter defenses that rely on static blocklists, allowing mass scanners to slip through and generate persistent noise that can mask genuine intrusion attempts.

Defenders should move away from sole reliance on static IP reputation and adopt real‑time threat‑intelligence feeds that provide contextual data to identify and block rotating scanners promptly.