report

Botnet Threat Update Q2 2021

Researchers may have observed a 12%reduction in botnet command and controllers (C&Cs), however, more than one industry-leading provider is struggling to keep on top of botnet activity.

by July 13, 20211 minutes reading time

Botnet C&C

Help and recommended content

See below for helpful articles and recommended content

Domain Reputation Update Oct 2024 - Mar 2025

Domain reputation

Service providers

Report • April 10, 2025 • The Spamhaus Team

Query the legacy DNSBLs via Microsoft? Move to Spamhaus Technology’s free Data Query Service

If you're using the free legacy DNS Blocklists (DNSBLs) through the Public Mirrors while running on Microsoft’s infrastructure, you'll need to make a few small adjustments to your email setup. These changes are simple to apply, but if you don’t take action, you risk having some - or even all - of your email blocked after April 9, 2025!

Email security

DNSBL

Blog • March 11, 2025 • The Spamhaus Team

How I’m fighting cybercrime with Spamhaus (and how you can too!)

Meet Jeroen Gui - student, founder of JustGuard, and a top contributor to Spamhaus' Threat Intel Community Portal. Passionate about making the internet a safer place, Jeroen submits thousands of malicious domains, URLs, and raw email sources every month. But what drives him to share his data, and how can you get involved too?

Threat intelligence

Threat hunting

Blog • February 26, 2025 • Jeroen Gui

Home

...

Home