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



Source: TheHackerNews
Source Link: https://thehackernews.com/2026/06/pcpjack-hijacks-230-aws-google-cloud.html