CISA bulletproof hosting abuse mitigation guide
Advisory/Mitigation
Summary
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CISA and partners released bulletproof hosting (BPH) mitigation guidance for ISPs and network defenders, aiming to reduce abuse that enables ransomware, phishing, malware delivery, and extortion. The guide focuses on identifying malicious internet resources, improving traffic visibility, and applying targeted filters while limiting collateral blocking. It matters because BPH operators help criminals hide infrastructure, cycle IPs, and evade takedowns. The recommendations give defenders concrete steps to make illicit hosting less effective across critical sectors.
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Timeline
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20.11.2025 17:00 2 articles · 6mo ago
CISA releases BPH mitigation guide
Initial DisclosureUS CISA and US and international partners released a joint guide for internet service providers and network defenders to curb cybercrime enabled by bulletproof hosting (BPH) infrastructure, describing how BPH services support ransomware, phishing, malware delivery, and other attacks against critical sectors while recommending high-confidence malicious resource lists, continuous traffic analysis, automated blocklist reviews, threat intelligence sharing, edge filtering, and feedback processes to reduce accidental blocking of legitimate systems.
Show sources
- CISA Issues New Guidance on Bulletproof Hosting Threat — www.infosecurity-magazine.com — 20.11.2025 17:00
- CISA Issues New Guidance on Bulletproof Hosting Threat — www.infosecurity-magazine.com — 20.11.2025 17:00