Earlier this year, Spamhaus researchers observed a major shift in phishing targeting Japan. Starting in April, a China-nexus threat actor began using residential proxy networks to send phishing emails instead of subnets at China Telecom and China Unicom. This blog explores the campaign’s origins and countermeasures against residential proxy-enabled spam.

The post Bad sushi: China-nexus phishers shift to residential proxies appeared first on Security Boulevard.

Jonas Arnold

Source: Security Boulevard
Source Link: https://securityboulevard.com/2025/10/bad-sushi-china-nexus-phishers-shift-to-residential-proxies/