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.

848,000

Malicious domains sinkholed & blocked in a single botnet takedown operation, 2.5M over 4 years.

152 billion

scan probes sent every day

1.9 billion+

malware samples in our malware repository