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.

1.7 billion+

malware samples in our malware repository

3.7 billion

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

7,000

Vetted network owners who rely
on our free daily reports