Residential Proxies Evade IP Reputation Checks in 78% of Monitored Sessions

Researchers found that residential proxies bypassed IP reputation checks in 78% of 4 billion monitored sessions, undermining security systems that rely on IP-based threat detection. These proxies route malicious traffic through legitimate residential IP addresses, making it difficult to distinguish between attackers and genuine users. The study highlights a significant gap in current IP reputation defenses, as residential proxies obscure the origin of malicious activity. No specific dates, CVE IDs, or affected vendors were disclosed in the findings. The impact includes reduced effectiveness of IP-based blocking and increased risk of fraud, credential stuffing, and automated attacks.