SOC2026-09-09
IP Blacklisted? Check for a False Positive Before Blocking
Check DNSBL scope, shared IPs, stale evidence and lookup errors to find why an IP was blacklisted and choose a proportionate response.
6 min read
Threat Intel2026-08-25
isMalicious vs Spamhaus: DNSBL Blocklists and Threat Enrichment Serve Different Layers
Spamhaus DROP and SBL are the standard for mail and network DNSBL blocking. isMalicious adds REST enrichment, URL scoring, CVE context, and STIX feeds. Most mature stacks use both at different layers.
6 min read