Attack traffic moved through ordinary home and mobile connections in ways that limited the usefulness of IP reputation on its own. GreyNoise observed 4 billion malicious sessions during a 90-day period and described activity that appeared indistinguishable from normal user traffic at the network level. Residential proxies routed traffic through consumer broadband, mobile data, and small-business connections. These same IP ranges were used by employees, customers, and partners, which made it difficult to separate malicious … More → The post Residential proxies make a mockery of IP-based defenses appeared first on Help Net Security.