Security research, threat intelligence insights, and product updates.
Check if your email address has been targeted in phishing or spam campaigns. 110,000+ emails tracked from real SMTP attacks captured by our global honeypot network. Free to search.
SikkerGuard pulls SikkerAPI's threat blacklist and blocks malicious IPs at the kernel level using iptables and ipset. One Docker container, one API key, zero maintenance. Free tier included.
Attack behaviors in the SikkerAPI detection catalog now display their underlying primitives as clickable tags. Browse the relationship between high-level attack patterns and the low-level detection rules that compose them.