One thing's clear: if you send an abuse notification to NiceNIC, it ends up being really 'nice' for the criminals.
This reminded me of an idea for proxy filtering: filtering based on the domain registrar. Another practical use case for the WHOIS history database.
Is there an open and public list of the worst registrars?
[#]networksecurity #whois #whosis #cybersecurity #abusehandling #csirt
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