Spamhaus
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LatestSourcesas of 2026-09-15
- Botnet Threat Update January to June 2026
Between Jan–Jun 2026 botnet C&C servers observed decreased -30% to 14,952. Sliver overtook Cobalt Strike for the #1 spot (+58%). Meanwhile .cn botnet C&C domains surged +771% and India's PDR registrar saw a +901% spike in abused registrations - though REGRU bucked the trend with…
- Spamhaus CERT Insight Portal: Enhanced botnet C&C intelligence
More than 100 CERTs and CSIRTs rely on Spamhaus data to help remediate malware infections in their countries. Today, we’re giving them even more data to work with. The Spamhaus CERT Insight Portal has been updated with enriched threat intel and improved capabilities to help nati…
- Bulletproof Hosting: Cutting off the facilitators
Behind every bulletproof host sits a chain of facilitators: IP address brokers, network carriers, and datacenters whose services are essential to keeping criminal operations online. This post explores how Spamhaus targets those facilitators, and why steadily shrinking their opti…