Shadowserver works with national governments, network providers, enterprises, financial and academic institutions, law enforcement agencies, and others, to reveal security vulnerabilities, expose malicious activity and help remediate victims.

3.7 billion

IPv4 addresses scanned on 148 ports each per day (1.07 billion IPv6 on 77 ports). 381 million hosts respond


Class C networks hosting honeypots & spampots


National CSIRTs depending
on our free daily reports, covering 175 countries and territories