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.

145 million

sinkhole connections per day

96 billion

UDP and 214 billion TCP IPv4 scan packets sent every day