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A 39-minute NANOG conference talk explores the battle against network spam through advanced threat intelligence and strategic countermeasures. Learn how disabling PTR records disrupted spammer tactics, while enhanced business vetting processes prevented infiltration by malicious actors. Discover the implementation of robust RPKI deployment as a digital shield against spoofing attempts and unauthorized traffic. Examine the challenges faced, including retaliatory DDoS attacks and fraudulent chargebacks, and understand how these security measures ultimately strengthened network resilience. Platform Engineering Manager Ignas Anfalovas shares firsthand experiences and proven best practices for building robust network security protocols and maintaining digital infrastructure integrity in an ever-evolving threat landscape.