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.

4 million

IP addresses sinkholed per day, across 391 different malware family variants


Vetted network owners who rely
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4 billion

IPv4 addresses scanned on 42 ports each per day. 220-350 million hosts respond