Cisco Secure Firewall Threat Defense Virtual (formerly NGFWv) vs. CrowdSec

Cisco Secure Firewall Threat Defense Virtual (formerly FTDv/NGFWv) is a comprehensive security solution designed to protect virtualized environments across private and public clouds. It integrates Cisco's proven network firewall capabilities with advanced threat defense features, including Snort Intrusion Prevention System (IPS), URL filtering, and malware defense. This virtualized firewall ensures consistent security policies and deep visibility into network traffic, enabling organizations to detect and mitigate threats before they impact operations.

CrowdSec is an open-source security stack that detects aggressive behaviors and prevents them from accessing your systems. Its user-friendly design and ease of integration into your current security infrastructure offer a low technical entry barrier and a high-security gain. Once an unwanted behavior is detected, it is automatically blocked. The aggressive IP, scenario triggered and the timestamp is sent for curation, to avoid poisoning & false positives. If verified, this IP is then redistributed to all CrowdSec users running the same scenario.