> PCPJack Hijacks 230 AWS, Google Cloud, and Azure Servers for Covert SMTP Relay Network
[DATE: 05/06/2026 05:34]
[LANGUAGE: EN]
The threat actor known as PCPJack has hijacked cloud servers associated with Amazon Web Services (AWS), Google Cloud, and Microsoft Azure to create a covert SMTP email relay network.
"Compromised business servers across the U.S., Europe, and Asia were quietly converted into SMTP proxies, verified for mail relay capability, and synced to a downstream consumer every five minutes," Hunt.io said in